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Finding the Fourth Proportional to 22,036.86, 30,399.60 and 14,070.71

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Solution

The fourth proportional to 22,036.86, 30,399.60 and 14,070.71 is: 19,410.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,036.86 : 30,399.60 = 14,070.71 : x
  2. Step 2: Convert to fraction form
    22,036.86/30,399.60 = 14,070.71/x
  3. Step 3: Cross multiply
    22,036.86x = 30,399.60 × 14,070.71
  4. Step 4: Simplify right side
    22,036.86x = 427,744,084.48
  5. Step 5: Solve for x
    x = 427,744,084.48/22,036.86
  6. Step 6: Final answer
    x = 19,410.39

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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.