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Finding the Fourth Proportional to 62,369.66, 86,161.20 and 53,971.58

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Solution

The fourth proportional to 62,369.66, 86,161.20 and 53,971.58 is: 74,559.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,369.66 : 86,161.20 = 53,971.58 : x
  2. Step 2: Convert to fraction form
    62,369.66/86,161.20 = 53,971.58/x
  3. Step 3: Cross multiply
    62,369.66x = 86,161.20 × 53,971.58
  4. Step 4: Simplify right side
    62,369.66x = 4,650,256,098.70
  5. Step 5: Solve for x
    x = 4,650,256,098.70/62,369.66
  6. Step 6: Final answer
    x = 74,559.59

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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.