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Finding the Fourth Proportional to 62,980.60, 86,911.14 and 34,686.22

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Solution

The fourth proportional to 62,980.60, 86,911.14 and 34,686.22 is: 47,865.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,980.60 : 86,911.14 = 34,686.22 : x
  2. Step 2: Convert to fraction form
    62,980.60/86,911.14 = 34,686.22/x
  3. Step 3: Cross multiply
    62,980.60x = 86,911.14 × 34,686.22
  4. Step 4: Simplify right side
    62,980.60x = 3,014,618,922.49
  5. Step 5: Solve for x
    x = 3,014,618,922.49/62,980.60
  6. Step 6: Final answer
    x = 47,865.83

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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.