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Finding the Fourth Proportional to 67,508.92, 93,139.50 and 39,204.28

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Solution

The fourth proportional to 67,508.92, 93,139.50 and 39,204.28 is: 54,088.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,508.92 : 93,139.50 = 39,204.28 : x
  2. Step 2: Convert to fraction form
    67,508.92/93,139.50 = 39,204.28/x
  3. Step 3: Cross multiply
    67,508.92x = 93,139.50 × 39,204.28
  4. Step 4: Simplify right side
    67,508.92x = 3,651,467,037.06
  5. Step 5: Solve for x
    x = 3,651,467,037.06/67,508.92
  6. Step 6: Final answer
    x = 54,088.66

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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.