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Finding the Fourth Proportional to 39,472.40, 59,207.24 and 9,890.49

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Solution

The fourth proportional to 39,472.40, 59,207.24 and 9,890.49 is: 14,835.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,472.40 : 59,207.24 = 9,890.49 : x
  2. Step 2: Convert to fraction form
    39,472.40/59,207.24 = 9,890.49/x
  3. Step 3: Cross multiply
    39,472.40x = 59,207.24 × 9,890.49
  4. Step 4: Simplify right side
    39,472.40x = 585,588,565.70
  5. Step 5: Solve for x
    x = 585,588,565.70/39,472.40
  6. Step 6: Final answer
    x = 14,835.39

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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.