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Finding the Fourth Proportional to 58,913.40, 88,370.10 and 39,127.80

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Solution

The fourth proportional to 58,913.40, 88,370.10 and 39,127.80 is: 58,691.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,913.40 : 88,370.10 = 39,127.80 : x
  2. Step 2: Convert to fraction form
    58,913.40/88,370.10 = 39,127.80/x
  3. Step 3: Cross multiply
    58,913.40x = 88,370.10 × 39,127.80
  4. Step 4: Simplify right side
    58,913.40x = 3,457,727,598.78
  5. Step 5: Solve for x
    x = 3,457,727,598.78/58,913.40
  6. Step 6: Final answer
    x = 58,691.70

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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.