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Finding the Fourth Proportional to 73,877.12, 110,815.68 and 18,473.12

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Solution

The fourth proportional to 73,877.12, 110,815.68 and 18,473.12 is: 27,709.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,877.12 : 110,815.68 = 18,473.12 : x
  2. Step 2: Convert to fraction form
    73,877.12/110,815.68 = 18,473.12/x
  3. Step 3: Cross multiply
    73,877.12x = 110,815.68 × 18,473.12
  4. Step 4: Simplify right side
    73,877.12x = 2,047,111,354.52
  5. Step 5: Solve for x
    x = 2,047,111,354.52/73,877.12
  6. Step 6: Final answer
    x = 27,709.68

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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.