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Finding the Fourth Proportional to 64,433.52, 88,918.04 and 36,139.12

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Solution

The fourth proportional to 64,433.52, 88,918.04 and 36,139.12 is: 49,871.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,433.52 : 88,918.04 = 36,139.12 : x
  2. Step 2: Convert to fraction form
    64,433.52/88,918.04 = 36,139.12/x
  3. Step 3: Cross multiply
    64,433.52x = 88,918.04 × 36,139.12
  4. Step 4: Simplify right side
    64,433.52x = 3,213,419,717.72
  5. Step 5: Solve for x
    x = 3,213,419,717.72/64,433.52
  6. Step 6: Final answer
    x = 49,871.86

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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.