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Finding the Fourth Proportional to 16,920.62, 23,355.14 and 9,848.40

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Solution

The fourth proportional to 16,920.62, 23,355.14 and 9,848.40 is: 13,593.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,920.62 : 23,355.14 = 9,848.40 : x
  2. Step 2: Convert to fraction form
    16,920.62/23,355.14 = 9,848.40/x
  3. Step 3: Cross multiply
    16,920.62x = 23,355.14 × 9,848.40
  4. Step 4: Simplify right side
    16,920.62x = 230,010,760.78
  5. Step 5: Solve for x
    x = 230,010,760.78/16,920.62
  6. Step 6: Final answer
    x = 13,593.52

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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.