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Finding the Fourth Proportional to 58,412.70, 80,609.43 and 31,555.13

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Solution

The fourth proportional to 58,412.70, 80,609.43 and 31,555.13 is: 43,546.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,412.70 : 80,609.43 = 31,555.13 : x
  2. Step 2: Convert to fraction form
    58,412.70/80,609.43 = 31,555.13/x
  3. Step 3: Cross multiply
    58,412.70x = 80,609.43 × 31,555.13
  4. Step 4: Simplify right side
    58,412.70x = 2,543,640,807.38
  5. Step 5: Solve for x
    x = 2,543,640,807.38/58,412.70
  6. Step 6: Final answer
    x = 43,546.02

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Half scale
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Double scale
Find fourth proportional to 58,413.70, 80,610.81 and 31,556.13
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.