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Finding the Fourth Proportional to 62,858.80, 86,742.90 and 34,564.24

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Solution

The fourth proportional to 62,858.80, 86,742.90 and 34,564.24 is: 47,697.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,858.80 : 86,742.90 = 34,564.24 : x
  2. Step 2: Convert to fraction form
    62,858.80/86,742.90 = 34,564.24/x
  3. Step 3: Cross multiply
    62,858.80x = 86,742.90 × 34,564.24
  4. Step 4: Simplify right side
    62,858.80x = 2,998,202,413.90
  5. Step 5: Solve for x
    x = 2,998,202,413.90/62,858.80
  6. Step 6: Final answer
    x = 47,697.42

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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.