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Finding the Fourth Proportional to 84,642.99, 127,019.52 and 36,658.46

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Solution

The fourth proportional to 84,642.99, 127,019.52 and 36,658.46 is: 55,011.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,642.99 : 127,019.52 = 36,658.46 : x
  2. Step 2: Convert to fraction form
    84,642.99/127,019.52 = 36,658.46/x
  3. Step 3: Cross multiply
    84,642.99x = 127,019.52 × 36,658.46
  4. Step 4: Simplify right side
    84,642.99x = 4,656,339,358.04
  5. Step 5: Solve for x
    x = 4,656,339,358.04/84,642.99
  6. Step 6: Final answer
    x = 55,011.52

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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.