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Finding the Fourth Proportional to 65,240.96, 90,032.56 and 35,432.96

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Solution

The fourth proportional to 65,240.96, 90,032.56 and 35,432.96 is: 48,897.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,240.96 : 90,032.56 = 35,432.96 : x
  2. Step 2: Convert to fraction form
    65,240.96/90,032.56 = 35,432.96/x
  3. Step 3: Cross multiply
    65,240.96x = 90,032.56 × 35,432.96
  4. Step 4: Simplify right side
    65,240.96x = 3,190,120,097.18
  5. Step 5: Solve for x
    x = 3,190,120,097.18/65,240.96
  6. Step 6: Final answer
    x = 48,897.50

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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.