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Finding the Fourth Proportional to 62,610, 86,401.80 and 36,114

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Solution

The fourth proportional to 62,610, 86,401.80 and 36,114 is: 49,837.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,610 : 86,401.80 = 36,114 : x
  2. Step 2: Convert to fraction form
    62,610/86,401.80 = 36,114/x
  3. Step 3: Cross multiply
    62,610x = 86,401.80 × 36,114
  4. Step 4: Simplify right side
    62,610x = 3,120,314,605.20
  5. Step 5: Solve for x
    x = 3,120,314,605.20/62,610
  6. Step 6: Final answer
    x = 49,837.32

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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.