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Finding the Fourth Proportional to 8,562.60, 11,802.24 and 5,728.95

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Solution

The fourth proportional to 8,562.60, 11,802.24 and 5,728.95 is: 7,896.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,562.60 : 11,802.24 = 5,728.95 : x
  2. Step 2: Convert to fraction form
    8,562.60/11,802.24 = 5,728.95/x
  3. Step 3: Cross multiply
    8,562.60x = 11,802.24 × 5,728.95
  4. Step 4: Simplify right side
    8,562.60x = 67,614,442.85
  5. Step 5: Solve for x
    x = 67,614,442.85/8,562.60
  6. Step 6: Final answer
    x = 7,896.49

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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.