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Finding the Fourth Proportional to 8,522.65, 11,760.41 and 4,985.17

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Solution

The fourth proportional to 8,522.65, 11,760.41 and 4,985.17 is: 6,879.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,522.65 : 11,760.41 = 4,985.17 : x
  2. Step 2: Convert to fraction form
    8,522.65/11,760.41 = 4,985.17/x
  3. Step 3: Cross multiply
    8,522.65x = 11,760.41 × 4,985.17
  4. Step 4: Simplify right side
    8,522.65x = 58,627,643.12
  5. Step 5: Solve for x
    x = 58,627,643.12/8,522.65
  6. Step 6: Final answer
    x = 6,879.04

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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.