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Finding the Fourth Proportional to 18,065.19, 24,921.54 and 11,693.83

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Solution

The fourth proportional to 18,065.19, 24,921.54 and 11,693.83 is: 16,132.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,065.19 : 24,921.54 = 11,693.83 : x
  2. Step 2: Convert to fraction form
    18,065.19/24,921.54 = 11,693.83/x
  3. Step 3: Cross multiply
    18,065.19x = 24,921.54 × 11,693.83
  4. Step 4: Simplify right side
    18,065.19x = 291,428,252.10
  5. Step 5: Solve for x
    x = 291,428,252.10/18,065.19
  6. Step 6: Final answer
    x = 16,132.03

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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.