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Finding the Fourth Proportional to 22,693.48, 33,981.90 and 13,901.74

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Solution

The fourth proportional to 22,693.48, 33,981.90 and 13,901.74 is: 20,816.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,693.48 : 33,981.90 = 13,901.74 : x
  2. Step 2: Convert to fraction form
    22,693.48/33,981.90 = 13,901.74/x
  3. Step 3: Cross multiply
    22,693.48x = 33,981.90 × 13,901.74
  4. Step 4: Simplify right side
    22,693.48x = 472,407,538.51
  5. Step 5: Solve for x
    x = 472,407,538.51/22,693.48
  6. Step 6: Final answer
    x = 20,816.88

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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.