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Finding the Fourth Proportional to 62,902.81, 86,791.62 and 45,916.31

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Solution

The fourth proportional to 62,902.81, 86,791.62 and 45,916.31 is: 63,354.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,902.81 : 86,791.62 = 45,916.31 : x
  2. Step 2: Convert to fraction form
    62,902.81/86,791.62 = 45,916.31/x
  3. Step 3: Cross multiply
    62,902.81x = 86,791.62 × 45,916.31
  4. Step 4: Simplify right side
    62,902.81x = 3,985,150,929.32
  5. Step 5: Solve for x
    x = 3,985,150,929.32/62,902.81
  6. Step 6: Final answer
    x = 63,354.10

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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.