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Finding the Fourth Proportional to 69,718.50, 96,212.14 and 37,887.40

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Solution

The fourth proportional to 69,718.50, 96,212.14 and 37,887.40 is: 52,284.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,718.50 : 96,212.14 = 37,887.40 : x
  2. Step 2: Convert to fraction form
    69,718.50/96,212.14 = 37,887.40/x
  3. Step 3: Cross multiply
    69,718.50x = 96,212.14 × 37,887.40
  4. Step 4: Simplify right side
    69,718.50x = 3,645,227,833.04
  5. Step 5: Solve for x
    x = 3,645,227,833.04/69,718.50
  6. Step 6: Final answer
    x = 52,284.94

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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.