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Finding the Fourth Proportional to 18,141.96, 25,044.80 and 14,099.28

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Solution

The fourth proportional to 18,141.96, 25,044.80 and 14,099.28 is: 19,463.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,141.96 : 25,044.80 = 14,099.28 : x
  2. Step 2: Convert to fraction form
    18,141.96/25,044.80 = 14,099.28/x
  3. Step 3: Cross multiply
    18,141.96x = 25,044.80 × 14,099.28
  4. Step 4: Simplify right side
    18,141.96x = 353,113,647.74
  5. Step 5: Solve for x
    x = 353,113,647.74/18,141.96
  6. Step 6: Final answer
    x = 19,463.92

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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.