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Finding the Fourth Proportional to 69,352.79, 95,706.82 and 39,144.45

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Solution

The fourth proportional to 69,352.79, 95,706.82 and 39,144.45 is: 54,019.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,352.79 : 95,706.82 = 39,144.45 : x
  2. Step 2: Convert to fraction form
    69,352.79/95,706.82 = 39,144.45/x
  3. Step 3: Cross multiply
    69,352.79x = 95,706.82 × 39,144.45
  4. Step 4: Simplify right side
    69,352.79x = 3,746,390,879.08
  5. Step 5: Solve for x
    x = 3,746,390,879.08/69,352.79
  6. Step 6: Final answer
    x = 54,019.32

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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.