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Finding the Fourth Proportional to 64,318.44, 88,723.28 and 45,422.76

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Solution

The fourth proportional to 64,318.44, 88,723.28 and 45,422.76 is: 62,657.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,318.44 : 88,723.28 = 45,422.76 : x
  2. Step 2: Convert to fraction form
    64,318.44/88,723.28 = 45,422.76/x
  3. Step 3: Cross multiply
    64,318.44x = 88,723.28 × 45,422.76
  4. Step 4: Simplify right side
    64,318.44x = 4,030,056,253.85
  5. Step 5: Solve for x
    x = 4,030,056,253.85/64,318.44
  6. Step 6: Final answer
    x = 62,657.87

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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.