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Finding the Fourth Proportional to 72,306.16, 108,448.98 and 27,953.80

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Solution

The fourth proportional to 72,306.16, 108,448.98 and 27,953.80 is: 41,926.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,306.16 : 108,448.98 = 27,953.80 : x
  2. Step 2: Convert to fraction form
    72,306.16/108,448.98 = 27,953.80/x
  3. Step 3: Cross multiply
    72,306.16x = 108,448.98 × 27,953.80
  4. Step 4: Simplify right side
    72,306.16x = 3,031,561,097.12
  5. Step 5: Solve for x
    x = 3,031,561,097.12/72,306.16
  6. Step 6: Final answer
    x = 41,926.73

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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.