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Finding the Fourth Proportional to 22,479.68, 33,720.48 and 6,897.92

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Solution

The fourth proportional to 22,479.68, 33,720.48 and 6,897.92 is: 10,347.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,479.68 : 33,720.48 = 6,897.92 : x
  2. Step 2: Convert to fraction form
    22,479.68/33,720.48 = 6,897.92/x
  3. Step 3: Cross multiply
    22,479.68x = 33,720.48 × 6,897.92
  4. Step 4: Simplify right side
    22,479.68x = 232,601,173.40
  5. Step 5: Solve for x
    x = 232,601,173.40/22,479.68
  6. Step 6: Final answer
    x = 10,347.17

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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.