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Finding the Fourth Proportional to 64,063.92, 88,359.56 and 55,126.40

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Solution

The fourth proportional to 64,063.92, 88,359.56 and 55,126.40 is: 76,032.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,063.92 : 88,359.56 = 55,126.40 : x
  2. Step 2: Convert to fraction form
    64,063.92/88,359.56 = 55,126.40/x
  3. Step 3: Cross multiply
    64,063.92x = 88,359.56 × 55,126.40
  4. Step 4: Simplify right side
    64,063.92x = 4,870,944,448.38
  5. Step 5: Solve for x
    x = 4,870,944,448.38/64,063.92
  6. Step 6: Final answer
    x = 76,032.57

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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.