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Finding the Fourth Proportional to 62,482.31, 86,164.15 and 57,295.93

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Solution

The fourth proportional to 62,482.31, 86,164.15 and 57,295.93 is: 79,012.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,482.31 : 86,164.15 = 57,295.93 : x
  2. Step 2: Convert to fraction form
    62,482.31/86,164.15 = 57,295.93/x
  3. Step 3: Cross multiply
    62,482.31x = 86,164.15 × 57,295.93
  4. Step 4: Simplify right side
    62,482.31x = 4,936,854,748.26
  5. Step 5: Solve for x
    x = 4,936,854,748.26/62,482.31
  6. Step 6: Final answer
    x = 79,012.05

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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.