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Finding the Fourth Proportional to 73,008.48, 100,751.28 and 39,473.76

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Solution

The fourth proportional to 73,008.48, 100,751.28 and 39,473.76 is: 54,473.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,008.48 : 100,751.28 = 39,473.76 : x
  2. Step 2: Convert to fraction form
    73,008.48/100,751.28 = 39,473.76/x
  3. Step 3: Cross multiply
    73,008.48x = 100,751.28 × 39,473.76
  4. Step 4: Simplify right side
    73,008.48x = 3,977,031,846.41
  5. Step 5: Solve for x
    x = 3,977,031,846.41/73,008.48
  6. Step 6: Final answer
    x = 54,473.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.