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Finding the Fourth Proportional to 83,695.55, 115,525.46 and 49,709.57

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Solution

The fourth proportional to 83,695.55, 115,525.46 and 49,709.57 is: 68,614.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,695.55 : 115,525.46 = 49,709.57 : x
  2. Step 2: Convert to fraction form
    83,695.55/115,525.46 = 49,709.57/x
  3. Step 3: Cross multiply
    83,695.55x = 115,525.46 × 49,709.57
  4. Step 4: Simplify right side
    83,695.55x = 5,742,721,353.74
  5. Step 5: Solve for x
    x = 5,742,721,353.74/83,695.55
  6. Step 6: Final answer
    x = 68,614.41

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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.