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Finding the Fourth Proportional to 22,228.62, 30,671.62 and 13,275.58

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Solution

The fourth proportional to 22,228.62, 30,671.62 and 13,275.58 is: 18,317.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,228.62 : 30,671.62 = 13,275.58 : x
  2. Step 2: Convert to fraction form
    22,228.62/30,671.62 = 13,275.58/x
  3. Step 3: Cross multiply
    22,228.62x = 30,671.62 × 13,275.58
  4. Step 4: Simplify right side
    22,228.62x = 407,183,545.04
  5. Step 5: Solve for x
    x = 407,183,545.04/22,228.62
  6. Step 6: Final answer
    x = 18,317.99

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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.