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Finding the Fourth Proportional to 22,001.29, 30,359.01 and 12,570.46

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Solution

The fourth proportional to 22,001.29, 30,359.01 and 12,570.46 is: 17,345.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,001.29 : 30,359.01 = 12,570.46 : x
  2. Step 2: Convert to fraction form
    22,001.29/30,359.01 = 12,570.46/x
  3. Step 3: Cross multiply
    22,001.29x = 30,359.01 × 12,570.46
  4. Step 4: Simplify right side
    22,001.29x = 381,626,720.84
  5. Step 5: Solve for x
    x = 381,626,720.84/22,001.29
  6. Step 6: Final answer
    x = 17,345.65

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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.