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Finding the Fourth Proportional to 77,552.88, 116,329.32 and 21,393.42

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Solution

The fourth proportional to 77,552.88, 116,329.32 and 21,393.42 is: 32,090.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,552.88 : 116,329.32 = 21,393.42 : x
  2. Step 2: Convert to fraction form
    77,552.88/116,329.32 = 21,393.42/x
  3. Step 3: Cross multiply
    77,552.88x = 116,329.32 × 21,393.42
  4. Step 4: Simplify right side
    77,552.88x = 2,488,682,001.07
  5. Step 5: Solve for x
    x = 2,488,682,001.07/77,552.88
  6. Step 6: Final answer
    x = 32,090.13

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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.