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Finding the Fourth Proportional to 8,752.64, 12,068.64 and 5,767.52

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Solution

The fourth proportional to 8,752.64, 12,068.64 and 5,767.52 is: 7,952.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,752.64 : 12,068.64 = 5,767.52 : x
  2. Step 2: Convert to fraction form
    8,752.64/12,068.64 = 5,767.52/x
  3. Step 3: Cross multiply
    8,752.64x = 12,068.64 × 5,767.52
  4. Step 4: Simplify right side
    8,752.64x = 69,606,122.57
  5. Step 5: Solve for x
    x = 69,606,122.57/8,752.64
  6. Step 6: Final answer
    x = 7,952.59

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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.