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Finding the Fourth Proportional to 76,062.38, 114,094.01 and 20,658.38

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Solution

The fourth proportional to 76,062.38, 114,094.01 and 20,658.38 is: 30,987.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,062.38 : 114,094.01 = 20,658.38 : x
  2. Step 2: Convert to fraction form
    76,062.38/114,094.01 = 20,658.38/x
  3. Step 3: Cross multiply
    76,062.38x = 114,094.01 × 20,658.38
  4. Step 4: Simplify right side
    76,062.38x = 2,356,996,895.48
  5. Step 5: Solve for x
    x = 2,356,996,895.48/76,062.38
  6. Step 6: Final answer
    x = 30,987.68

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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.