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Finding the Fourth Proportional to 12,862.60, 17,752.44 and 7,558.72

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Solution

The fourth proportional to 12,862.60, 17,752.44 and 7,558.72 is: 10,432.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,862.60 : 17,752.44 = 7,558.72 : x
  2. Step 2: Convert to fraction form
    12,862.60/17,752.44 = 7,558.72/x
  3. Step 3: Cross multiply
    12,862.60x = 17,752.44 × 7,558.72
  4. Step 4: Simplify right side
    12,862.60x = 134,185,723.28
  5. Step 5: Solve for x
    x = 134,185,723.28/12,862.60
  6. Step 6: Final answer
    x = 10,432.24

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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.