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Finding the Fourth Proportional to 48,218.70, 72,230.85 and 27,417.90

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Solution

The fourth proportional to 48,218.70, 72,230.85 and 27,417.90 is: 41,071.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,218.70 : 72,230.85 = 27,417.90 : x
  2. Step 2: Convert to fraction form
    48,218.70/72,230.85 = 27,417.90/x
  3. Step 3: Cross multiply
    48,218.70x = 72,230.85 × 27,417.90
  4. Step 4: Simplify right side
    48,218.70x = 1,980,418,222.22
  5. Step 5: Solve for x
    x = 1,980,418,222.22/48,218.70
  6. Step 6: Final answer
    x = 41,071.58

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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.