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Finding the Fourth Proportional to 39,498.40, 59,132.40 and 38,346.40

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Solution

The fourth proportional to 39,498.40, 59,132.40 and 38,346.40 is: 57,407.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,498.40 : 59,132.40 = 38,346.40 : x
  2. Step 2: Convert to fraction form
    39,498.40/59,132.40 = 38,346.40/x
  3. Step 3: Cross multiply
    39,498.40x = 59,132.40 × 38,346.40
  4. Step 4: Simplify right side
    39,498.40x = 2,267,514,663.36
  5. Step 5: Solve for x
    x = 2,267,514,663.36/39,498.40
  6. Step 6: Final answer
    x = 57,407.76

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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.