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Finding the Fourth Proportional to 69,728.72, 104,606.64 and 25,354.76

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Solution

The fourth proportional to 69,728.72, 104,606.64 and 25,354.76 is: 38,037.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,728.72 : 104,606.64 = 25,354.76 : x
  2. Step 2: Convert to fraction form
    69,728.72/104,606.64 = 25,354.76/x
  3. Step 3: Cross multiply
    69,728.72x = 104,606.64 × 25,354.76
  4. Step 4: Simplify right side
    69,728.72x = 2,652,276,251.61
  5. Step 5: Solve for x
    x = 2,652,276,251.61/69,728.72
  6. Step 6: Final answer
    x = 38,037.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.