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Finding the Fourth Proportional to 22,079.95, 30,470.65 and 12,008.39

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Solution

The fourth proportional to 22,079.95, 30,470.65 and 12,008.39 is: 16,571.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,079.95 : 30,470.65 = 12,008.39 : x
  2. Step 2: Convert to fraction form
    22,079.95/30,470.65 = 12,008.39/x
  3. Step 3: Cross multiply
    22,079.95x = 30,470.65 × 12,008.39
  4. Step 4: Simplify right side
    22,079.95x = 365,903,266.38
  5. Step 5: Solve for x
    x = 365,903,266.38/22,079.95
  6. Step 6: Final answer
    x = 16,571.75

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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.