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Finding the Fourth Proportional to 83,294.73, 124,907.70 and 31,995.64

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Solution

The fourth proportional to 83,294.73, 124,907.70 and 31,995.64 is: 47,980.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,294.73 : 124,907.70 = 31,995.64 : x
  2. Step 2: Convert to fraction form
    83,294.73/124,907.70 = 31,995.64/x
  3. Step 3: Cross multiply
    83,294.73x = 124,907.70 × 31,995.64
  4. Step 4: Simplify right side
    83,294.73x = 3,996,502,078.55
  5. Step 5: Solve for x
    x = 3,996,502,078.55/83,294.73
  6. Step 6: Final answer
    x = 47,980.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.