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Finding the Fourth Proportional to 8,737.28, 12,057.28 and 4,758.24

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Solution

The fourth proportional to 8,737.28, 12,057.28 and 4,758.24 is: 6,566.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,737.28 : 12,057.28 = 4,758.24 : x
  2. Step 2: Convert to fraction form
    8,737.28/12,057.28 = 4,758.24/x
  3. Step 3: Cross multiply
    8,737.28x = 12,057.28 × 4,758.24
  4. Step 4: Simplify right side
    8,737.28x = 57,371,431.99
  5. Step 5: Solve for x
    x = 57,371,431.99/8,737.28
  6. Step 6: Final answer
    x = 6,566.28

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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.