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Finding the Fourth Proportional to 58,807.40, 88,211.10 and 39,021.80

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Solution

The fourth proportional to 58,807.40, 88,211.10 and 39,021.80 is: 58,532.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,807.40 : 88,211.10 = 39,021.80 : x
  2. Step 2: Convert to fraction form
    58,807.40/88,211.10 = 39,021.80/x
  3. Step 3: Cross multiply
    58,807.40x = 88,211.10 × 39,021.80
  4. Step 4: Simplify right side
    58,807.40x = 3,442,155,901.98
  5. Step 5: Solve for x
    x = 3,442,155,901.98/58,807.40
  6. Step 6: Final answer
    x = 58,532.70

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Similar ratio
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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.