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Finding the Fourth Proportional to 71,591.61, 98,793.23 and 42,927.09

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Solution

The fourth proportional to 71,591.61, 98,793.23 and 42,927.09 is: 59,237.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,591.61 : 98,793.23 = 42,927.09 : x
  2. Step 2: Convert to fraction form
    71,591.61/98,793.23 = 42,927.09/x
  3. Step 3: Cross multiply
    71,591.61x = 98,793.23 × 42,927.09
  4. Step 4: Simplify right side
    71,591.61x = 4,240,905,985.13
  5. Step 5: Solve for x
    x = 4,240,905,985.13/71,591.61
  6. Step 6: Final answer
    x = 59,237.47

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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.