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Finding the Fourth Proportional to 83,646.62, 115,432.53 and 45,923.30

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Solution

The fourth proportional to 83,646.62, 115,432.53 and 45,923.30 is: 63,374.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,646.62 : 115,432.53 = 45,923.30 : x
  2. Step 2: Convert to fraction form
    83,646.62/115,432.53 = 45,923.30/x
  3. Step 3: Cross multiply
    83,646.62x = 115,432.53 × 45,923.30
  4. Step 4: Simplify right side
    83,646.62x = 5,301,042,704.95
  5. Step 5: Solve for x
    x = 5,301,042,704.95/83,646.62
  6. Step 6: Final answer
    x = 63,374.26

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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.