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Finding the Fourth Proportional to 14,840.52, 20,451.72 and 10,862.88

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Solution

The fourth proportional to 14,840.52, 20,451.72 and 10,862.88 is: 14,970.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,840.52 : 20,451.72 = 10,862.88 : x
  2. Step 2: Convert to fraction form
    14,840.52/20,451.72 = 10,862.88/x
  3. Step 3: Cross multiply
    14,840.52x = 20,451.72 × 10,862.88
  4. Step 4: Simplify right side
    14,840.52x = 222,164,580.15
  5. Step 5: Solve for x
    x = 222,164,580.15/14,840.52
  6. Step 6: Final answer
    x = 14,970.13

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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.