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Finding the Fourth Proportional to 22,970.90, 34,443.56 and 8,922.18

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Solution

The fourth proportional to 22,970.90, 34,443.56 and 8,922.18 is: 13,378.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,970.90 : 34,443.56 = 8,922.18 : x
  2. Step 2: Convert to fraction form
    22,970.90/34,443.56 = 8,922.18/x
  3. Step 3: Cross multiply
    22,970.90x = 34,443.56 × 8,922.18
  4. Step 4: Simplify right side
    22,970.90x = 307,311,642.16
  5. Step 5: Solve for x
    x = 307,311,642.16/22,970.90
  6. Step 6: Final answer
    x = 13,378.30

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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.