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Finding the Fourth Proportional to 8,507.68, 11,737.68 and 5,527.28

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Solution

The fourth proportional to 8,507.68, 11,737.68 and 5,527.28 is: 7,625.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507.68 : 11,737.68 = 5,527.28 : x
  2. Step 2: Convert to fraction form
    8,507.68/11,737.68 = 5,527.28/x
  3. Step 3: Cross multiply
    8,507.68x = 11,737.68 × 5,527.28
  4. Step 4: Simplify right side
    8,507.68x = 64,877,443.91
  5. Step 5: Solve for x
    x = 64,877,443.91/8,507.68
  6. Step 6: Final answer
    x = 7,625.75

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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.