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Finding the Fourth Proportional to 22,491.60, 33,737.40 and 18,117.60

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Solution

The fourth proportional to 22,491.60, 33,737.40 and 18,117.60 is: 27,176.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,491.60 : 33,737.40 = 18,117.60 : x
  2. Step 2: Convert to fraction form
    22,491.60/33,737.40 = 18,117.60/x
  3. Step 3: Cross multiply
    22,491.60x = 33,737.40 × 18,117.60
  4. Step 4: Simplify right side
    22,491.60x = 611,240,718.24
  5. Step 5: Solve for x
    x = 611,240,718.24/22,491.60
  6. Step 6: Final answer
    x = 27,176.40

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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.