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Finding the Fourth Proportional to 8,860.32, 13,264.74 and 5,151.24

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Solution

The fourth proportional to 8,860.32, 13,264.74 and 5,151.24 is: 7,711.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,860.32 : 13,264.74 = 5,151.24 : x
  2. Step 2: Convert to fraction form
    8,860.32/13,264.74 = 5,151.24/x
  3. Step 3: Cross multiply
    8,860.32x = 13,264.74 × 5,151.24
  4. Step 4: Simplify right side
    8,860.32x = 68,329,859.28
  5. Step 5: Solve for x
    x = 68,329,859.28/8,860.32
  6. Step 6: Final answer
    x = 7,711.90

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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.