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Finding the Fourth Proportional to 22,462.76, 33,693.68 and 9,979.40

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Solution

The fourth proportional to 22,462.76, 33,693.68 and 9,979.40 is: 14,968.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,462.76 : 33,693.68 = 9,979.40 : x
  2. Step 2: Convert to fraction form
    22,462.76/33,693.68 = 9,979.40/x
  3. Step 3: Cross multiply
    22,462.76x = 33,693.68 × 9,979.40
  4. Step 4: Simplify right side
    22,462.76x = 336,242,710.19
  5. Step 5: Solve for x
    x = 336,242,710.19/22,462.76
  6. Step 6: Final answer
    x = 14,968.90

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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.