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Finding the Fourth Proportional to 22,011.52, 32,978.94 and 18,337.36

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Solution

The fourth proportional to 22,011.52, 32,978.94 and 18,337.36 is: 27,474.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,011.52 : 32,978.94 = 18,337.36 : x
  2. Step 2: Convert to fraction form
    22,011.52/32,978.94 = 18,337.36/x
  3. Step 3: Cross multiply
    22,011.52x = 32,978.94 × 18,337.36
  4. Step 4: Simplify right side
    22,011.52x = 604,746,695.20
  5. Step 5: Solve for x
    x = 604,746,695.20/22,011.52
  6. Step 6: Final answer
    x = 27,474.10

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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.