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Finding the Fourth Proportional to 65,023.68, 89,732.79 and 35,215.68

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Solution

The fourth proportional to 65,023.68, 89,732.79 and 35,215.68 is: 48,597.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,023.68 : 89,732.79 = 35,215.68 : x
  2. Step 2: Convert to fraction form
    65,023.68/89,732.79 = 35,215.68/x
  3. Step 3: Cross multiply
    65,023.68x = 89,732.79 × 35,215.68
  4. Step 4: Simplify right side
    65,023.68x = 3,160,001,218.15
  5. Step 5: Solve for x
    x = 3,160,001,218.15/65,023.68
  6. Step 6: Final answer
    x = 48,597.70

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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.