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Finding the Fourth Proportional to 91,967.72, 126,892.08 and 53,702.91

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Solution

The fourth proportional to 91,967.72, 126,892.08 and 53,702.91 is: 74,096.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,967.72 : 126,892.08 = 53,702.91 : x
  2. Step 2: Convert to fraction form
    91,967.72/126,892.08 = 53,702.91/x
  3. Step 3: Cross multiply
    91,967.72x = 126,892.08 × 53,702.91
  4. Step 4: Simplify right side
    91,967.72x = 6,814,473,951.95
  5. Step 5: Solve for x
    x = 6,814,473,951.95/91,967.72
  6. Step 6: Final answer
    x = 74,096.37

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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.