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Finding the Fourth Proportional to 72,534.98, 108,736.85 and 25,776.92

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Solution

The fourth proportional to 72,534.98, 108,736.85 and 25,776.92 is: 38,642.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,534.98 : 108,736.85 = 25,776.92 : x
  2. Step 2: Convert to fraction form
    72,534.98/108,736.85 = 25,776.92/x
  3. Step 3: Cross multiply
    72,534.98x = 108,736.85 × 25,776.92
  4. Step 4: Simplify right side
    72,534.98x = 2,802,900,410.93
  5. Step 5: Solve for x
    x = 2,802,900,410.93/72,534.98
  6. Step 6: Final answer
    x = 38,642.05

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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.