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Finding the Fourth Proportional to 83,698.95, 125,555.25 and 39,301.49

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Solution

The fourth proportional to 83,698.95, 125,555.25 and 39,301.49 is: 58,955.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,698.95 : 125,555.25 = 39,301.49 : x
  2. Step 2: Convert to fraction form
    83,698.95/125,555.25 = 39,301.49/x
  3. Step 3: Cross multiply
    83,698.95x = 125,555.25 × 39,301.49
  4. Step 4: Simplify right side
    83,698.95x = 4,934,507,774.55
  5. Step 5: Solve for x
    x = 4,934,507,774.55/83,698.95
  6. Step 6: Final answer
    x = 58,955.43

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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.