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Finding the Fourth Proportional to 66,393.59, 99,590.02 and 38,295.43

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Solution

The fourth proportional to 66,393.59, 99,590.02 and 38,295.43 is: 57,442.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,393.59 : 99,590.02 = 38,295.43 : x
  2. Step 2: Convert to fraction form
    66,393.59/99,590.02 = 38,295.43/x
  3. Step 3: Cross multiply
    66,393.59x = 99,590.02 × 38,295.43
  4. Step 4: Simplify right side
    66,393.59x = 3,813,842,294.89
  5. Step 5: Solve for x
    x = 3,813,842,294.89/66,393.59
  6. Step 6: Final answer
    x = 57,442.93

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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.