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Finding the Fourth Proportional to 72,048.68, 108,062.94 and 19,462.76

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Solution

The fourth proportional to 72,048.68, 108,062.94 and 19,462.76 is: 29,191.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,048.68 : 108,062.94 = 19,462.76 : x
  2. Step 2: Convert to fraction form
    72,048.68/108,062.94 = 19,462.76/x
  3. Step 3: Cross multiply
    72,048.68x = 108,062.94 × 19,462.76
  4. Step 4: Simplify right side
    72,048.68x = 2,103,203,066.11
  5. Step 5: Solve for x
    x = 2,103,203,066.11/72,048.68
  6. Step 6: Final answer
    x = 29,191.42

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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.