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Finding the Fourth Proportional to 65,691.81, 90,649.25 and 37,002.32

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Solution

The fourth proportional to 65,691.81, 90,649.25 and 37,002.32 is: 51,060.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,691.81 : 90,649.25 = 37,002.32 : x
  2. Step 2: Convert to fraction form
    65,691.81/90,649.25 = 37,002.32/x
  3. Step 3: Cross multiply
    65,691.81x = 90,649.25 × 37,002.32
  4. Step 4: Simplify right side
    65,691.81x = 3,354,232,500.76
  5. Step 5: Solve for x
    x = 3,354,232,500.76/65,691.81
  6. Step 6: Final answer
    x = 51,060.13

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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.