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Finding the Fourth Proportional to 9,169.49, 12,605.24 and 7,888.70

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Solution

The fourth proportional to 9,169.49, 12,605.24 and 7,888.70 is: 10,844.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,169.49 : 12,605.24 = 7,888.70 : x
  2. Step 2: Convert to fraction form
    9,169.49/12,605.24 = 7,888.70/x
  3. Step 3: Cross multiply
    9,169.49x = 12,605.24 × 7,888.70
  4. Step 4: Simplify right side
    9,169.49x = 99,438,976.51
  5. Step 5: Solve for x
    x = 99,438,976.51/9,169.49
  6. Step 6: Final answer
    x = 10,844.55

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Half scale
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Double scale
Find fourth proportional to 9,170.49, 12,606.62 and 7,889.70
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.