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Finding the Fourth Proportional to 58,487.70, 87,743.40 and 19,034.22

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Solution

The fourth proportional to 58,487.70, 87,743.40 and 19,034.22 is: 28,555.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,487.70 : 87,743.40 = 19,034.22 : x
  2. Step 2: Convert to fraction form
    58,487.70/87,743.40 = 19,034.22/x
  3. Step 3: Cross multiply
    58,487.70x = 87,743.40 × 19,034.22
  4. Step 4: Simplify right side
    58,487.70x = 1,670,127,179.15
  5. Step 5: Solve for x
    x = 1,670,127,179.15/58,487.70
  6. Step 6: Final answer
    x = 28,555.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.