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Finding the Fourth Proportional to 62,878.56, 86,773.80 and 34,585.68

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Solution

The fourth proportional to 62,878.56, 86,773.80 and 34,585.68 is: 47,729.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,878.56 : 86,773.80 = 34,585.68 : x
  2. Step 2: Convert to fraction form
    62,878.56/86,773.80 = 34,585.68/x
  3. Step 3: Cross multiply
    62,878.56x = 86,773.80 × 34,585.68
  4. Step 4: Simplify right side
    62,878.56x = 3,001,130,879.18
  5. Step 5: Solve for x
    x = 3,001,130,879.18/62,878.56
  6. Step 6: Final answer
    x = 47,729.00

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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.