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Finding the Fourth Proportional to 58,069.50, 86,938.98 and 38,287.68

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Solution

The fourth proportional to 58,069.50, 86,938.98 and 38,287.68 is: 57,322.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,069.50 : 86,938.98 = 38,287.68 : x
  2. Step 2: Convert to fraction form
    58,069.50/86,938.98 = 38,287.68/x
  3. Step 3: Cross multiply
    58,069.50x = 86,938.98 × 38,287.68
  4. Step 4: Simplify right side
    58,069.50x = 3,328,691,845.77
  5. Step 5: Solve for x
    x = 3,328,691,845.77/58,069.50
  6. Step 6: Final answer
    x = 57,322.55

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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.