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Finding the Fourth Proportional to 62,095.79, 85,645.98 and 39,415.08

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Solution

The fourth proportional to 62,095.79, 85,645.98 and 39,415.08 is: 54,363.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,095.79 : 85,645.98 = 39,415.08 : x
  2. Step 2: Convert to fraction form
    62,095.79/85,645.98 = 39,415.08/x
  3. Step 3: Cross multiply
    62,095.79x = 85,645.98 × 39,415.08
  4. Step 4: Simplify right side
    62,095.79x = 3,375,743,153.38
  5. Step 5: Solve for x
    x = 3,375,743,153.38/62,095.79
  6. Step 6: Final answer
    x = 54,363.48

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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.