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Finding the Fourth Proportional to 22,006.31, 30,368.59 and 11,934.99

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Solution

The fourth proportional to 22,006.31, 30,368.59 and 11,934.99 is: 16,470.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,006.31 : 30,368.59 = 11,934.99 : x
  2. Step 2: Convert to fraction form
    22,006.31/30,368.59 = 11,934.99/x
  3. Step 3: Cross multiply
    22,006.31x = 30,368.59 × 11,934.99
  4. Step 4: Simplify right side
    22,006.31x = 362,448,788.13
  5. Step 5: Solve for x
    x = 362,448,788.13/22,006.31
  6. Step 6: Final answer
    x = 16,470.22

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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.