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Finding the Fourth Proportional to 62,857.08, 86,743.12 and 34,564.60

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Solution

The fourth proportional to 62,857.08, 86,743.12 and 34,564.60 is: 47,699.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,857.08 : 86,743.12 = 34,564.60 : x
  2. Step 2: Convert to fraction form
    62,857.08/86,743.12 = 34,564.60/x
  3. Step 3: Cross multiply
    62,857.08x = 86,743.12 × 34,564.60
  4. Step 4: Simplify right side
    62,857.08x = 2,998,241,245.55
  5. Step 5: Solve for x
    x = 2,998,241,245.55/62,857.08
  6. Step 6: Final answer
    x = 47,699.34

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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.