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Finding the Fourth Proportional to 22,052.66, 30,432.66 and 12,621.20

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Solution

The fourth proportional to 22,052.66, 30,432.66 and 12,621.20 is: 17,417.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,052.66 : 30,432.66 = 12,621.20 : x
  2. Step 2: Convert to fraction form
    22,052.66/30,432.66 = 12,621.20/x
  3. Step 3: Cross multiply
    22,052.66x = 30,432.66 × 12,621.20
  4. Step 4: Simplify right side
    22,052.66x = 384,096,688.39
  5. Step 5: Solve for x
    x = 384,096,688.39/22,052.66
  6. Step 6: Final answer
    x = 17,417.25

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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.