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Finding the Fourth Proportional to 79,702.79, 109,991.22 and 43,892.48

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Solution

The fourth proportional to 79,702.79, 109,991.22 and 43,892.48 is: 60,572.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,702.79 : 109,991.22 = 43,892.48 : x
  2. Step 2: Convert to fraction form
    79,702.79/109,991.22 = 43,892.48/x
  3. Step 3: Cross multiply
    79,702.79x = 109,991.22 × 43,892.48
  4. Step 4: Simplify right side
    79,702.79x = 4,827,787,534.41
  5. Step 5: Solve for x
    x = 4,827,787,534.41/79,702.79
  6. Step 6: Final answer
    x = 60,572.38

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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.