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Finding the Fourth Proportional to 22,297.92, 30,748.16 and 15,581.10

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Solution

The fourth proportional to 22,297.92, 30,748.16 and 15,581.10 is: 21,485.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,297.92 : 30,748.16 = 15,581.10 : x
  2. Step 2: Convert to fraction form
    22,297.92/30,748.16 = 15,581.10/x
  3. Step 3: Cross multiply
    22,297.92x = 30,748.16 × 15,581.10
  4. Step 4: Simplify right side
    22,297.92x = 479,090,155.78
  5. Step 5: Solve for x
    x = 479,090,155.78/22,297.92
  6. Step 6: Final answer
    x = 21,485.87

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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.