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Finding the Fourth Proportional to 72,605.90, 108,884.29 and 27,616.58

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Solution

The fourth proportional to 72,605.90, 108,884.29 and 27,616.58 is: 41,415.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,605.90 : 108,884.29 = 27,616.58 : x
  2. Step 2: Convert to fraction form
    72,605.90/108,884.29 = 27,616.58/x
  3. Step 3: Cross multiply
    72,605.90x = 108,884.29 × 27,616.58
  4. Step 4: Simplify right side
    72,605.90x = 3,007,011,023.02
  5. Step 5: Solve for x
    x = 3,007,011,023.02/72,605.90
  6. Step 6: Final answer
    x = 41,415.52

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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.