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Finding the Fourth Proportional to 9,925.92, 13,697.80 and 5,449.97

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Solution

The fourth proportional to 9,925.92, 13,697.80 and 5,449.97 is: 7,520.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,925.92 : 13,697.80 = 5,449.97 : x
  2. Step 2: Convert to fraction form
    9,925.92/13,697.80 = 5,449.97/x
  3. Step 3: Cross multiply
    9,925.92x = 13,697.80 × 5,449.97
  4. Step 4: Simplify right side
    9,925.92x = 74,652,560.45
  5. Step 5: Solve for x
    x = 74,652,560.45/9,925.92
  6. Step 6: Final answer
    x = 7,520.97

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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.