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Finding the Fourth Proportional to 62,369.91, 86,161.55 and 53,971.83

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Solution

The fourth proportional to 62,369.91, 86,161.55 and 53,971.83 is: 74,559.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,369.91 : 86,161.55 = 53,971.83 : x
  2. Step 2: Convert to fraction form
    62,369.91/86,161.55 = 53,971.83/x
  3. Step 3: Cross multiply
    62,369.91x = 86,161.55 × 53,971.83
  4. Step 4: Simplify right side
    62,369.91x = 4,650,296,259.28
  5. Step 5: Solve for x
    x = 4,650,296,259.28/62,369.91
  6. Step 6: Final answer
    x = 74,559.93

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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.