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Finding the Fourth Proportional to 15,294.22, 22,921.99 and 8,724.11

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Solution

The fourth proportional to 15,294.22, 22,921.99 and 8,724.11 is: 13,075.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,294.22 : 22,921.99 = 8,724.11 : x
  2. Step 2: Convert to fraction form
    15,294.22/22,921.99 = 8,724.11/x
  3. Step 3: Cross multiply
    15,294.22x = 22,921.99 × 8,724.11
  4. Step 4: Simplify right side
    15,294.22x = 199,973,825.76
  5. Step 5: Solve for x
    x = 199,973,825.76/15,294.22
  6. Step 6: Final answer
    x = 13,075.13

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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.