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Finding the Fourth Proportional to 72,165.63, 108,248.58 and 27,813.27

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Solution

The fourth proportional to 72,165.63, 108,248.58 and 27,813.27 is: 41,719.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,165.63 : 108,248.58 = 27,813.27 : x
  2. Step 2: Convert to fraction form
    72,165.63/108,248.58 = 27,813.27/x
  3. Step 3: Cross multiply
    72,165.63x = 108,248.58 × 27,813.27
  4. Step 4: Simplify right side
    72,165.63x = 3,010,746,982.66
  5. Step 5: Solve for x
    x = 3,010,746,982.66/72,165.63
  6. Step 6: Final answer
    x = 41,719.96

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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.