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Finding the Fourth Proportional to 67,560.15, 93,238.74 and 39,264

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Solution

The fourth proportional to 67,560.15, 93,238.74 and 39,264 is: 54,187.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,560.15 : 93,238.74 = 39,264 : x
  2. Step 2: Convert to fraction form
    67,560.15/93,238.74 = 39,264/x
  3. Step 3: Cross multiply
    67,560.15x = 93,238.74 × 39,264
  4. Step 4: Simplify right side
    67,560.15x = 3,660,925,887.36
  5. Step 5: Solve for x
    x = 3,660,925,887.36/67,560.15
  6. Step 6: Final answer
    x = 54,187.65

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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.