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Finding the Fourth Proportional to 69,881.84, 96,387.52 and 67,567.40

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Solution

The fourth proportional to 69,881.84, 96,387.52 and 67,567.40 is: 93,195.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,881.84 : 96,387.52 = 67,567.40 : x
  2. Step 2: Convert to fraction form
    69,881.84/96,387.52 = 67,567.40/x
  3. Step 3: Cross multiply
    69,881.84x = 96,387.52 × 67,567.40
  4. Step 4: Simplify right side
    69,881.84x = 6,512,654,118.85
  5. Step 5: Solve for x
    x = 6,512,654,118.85/69,881.84
  6. Step 6: Final answer
    x = 93,195.23

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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.