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Finding the Fourth Proportional to 65,260.90, 97,672.65 and 57,387.70

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Solution

The fourth proportional to 65,260.90, 97,672.65 and 57,387.70 is: 85,889.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,260.90 : 97,672.65 = 57,387.70 : x
  2. Step 2: Convert to fraction form
    65,260.90/97,672.65 = 57,387.70/x
  3. Step 3: Cross multiply
    65,260.90x = 97,672.65 × 57,387.70
  4. Step 4: Simplify right side
    65,260.90x = 5,605,208,736.41
  5. Step 5: Solve for x
    x = 5,605,208,736.41/65,260.90
  6. Step 6: Final answer
    x = 85,889.23

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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.