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Finding the Fourth Proportional to 22,179.93, 30,601.04 and 15,807.53

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Solution

The fourth proportional to 22,179.93, 30,601.04 and 15,807.53 is: 21,809.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,179.93 : 30,601.04 = 15,807.53 : x
  2. Step 2: Convert to fraction form
    22,179.93/30,601.04 = 15,807.53/x
  3. Step 3: Cross multiply
    22,179.93x = 30,601.04 × 15,807.53
  4. Step 4: Simplify right side
    22,179.93x = 483,726,625.79
  5. Step 5: Solve for x
    x = 483,726,625.79/22,179.93
  6. Step 6: Final answer
    x = 21,809.20

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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.