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Finding the Fourth Proportional to 18,318.52, 27,468.54 and 13,050.52

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Solution

The fourth proportional to 18,318.52, 27,468.54 and 13,050.52 is: 19,569.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,318.52 : 27,468.54 = 13,050.52 : x
  2. Step 2: Convert to fraction form
    18,318.52/27,468.54 = 13,050.52/x
  3. Step 3: Cross multiply
    18,318.52x = 27,468.54 × 13,050.52
  4. Step 4: Simplify right side
    18,318.52x = 358,478,730.64
  5. Step 5: Solve for x
    x = 358,478,730.64/18,318.52
  6. Step 6: Final answer
    x = 19,569.20

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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.