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Finding the Fourth Proportional to 22,159.95, 30,596.15 and 17,929.79

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Solution

The fourth proportional to 22,159.95, 30,596.15 and 17,929.79 is: 24,755.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,159.95 : 30,596.15 = 17,929.79 : x
  2. Step 2: Convert to fraction form
    22,159.95/30,596.15 = 17,929.79/x
  3. Step 3: Cross multiply
    22,159.95x = 30,596.15 × 17,929.79
  4. Step 4: Simplify right side
    22,159.95x = 548,582,301.68
  5. Step 5: Solve for x
    x = 548,582,301.68/22,159.95
  6. Step 6: Final answer
    x = 24,755.57

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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.