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Finding the Fourth Proportional to 14,134.60, 21,201.90 and 10,854.10

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Solution

The fourth proportional to 14,134.60, 21,201.90 and 10,854.10 is: 16,281.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,134.60 : 21,201.90 = 10,854.10 : x
  2. Step 2: Convert to fraction form
    14,134.60/21,201.90 = 10,854.10/x
  3. Step 3: Cross multiply
    14,134.60x = 21,201.90 × 10,854.10
  4. Step 4: Simplify right side
    14,134.60x = 230,127,542.79
  5. Step 5: Solve for x
    x = 230,127,542.79/14,134.60
  6. Step 6: Final answer
    x = 16,281.15

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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.