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Finding the Fourth Proportional to 77,480.40, 106,926.48 and 60,684.24

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Solution

The fourth proportional to 77,480.40, 106,926.48 and 60,684.24 is: 83,747.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,480.40 : 106,926.48 = 60,684.24 : x
  2. Step 2: Convert to fraction form
    77,480.40/106,926.48 = 60,684.24/x
  3. Step 3: Cross multiply
    77,480.40x = 106,926.48 × 60,684.24
  4. Step 4: Simplify right side
    77,480.40x = 6,488,752,174.68
  5. Step 5: Solve for x
    x = 6,488,752,174.68/77,480.40
  6. Step 6: Final answer
    x = 83,747.01

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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.