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Finding the Fourth Proportional to 83,620.25, 115,395.95 and 45,896.93

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Solution

The fourth proportional to 83,620.25, 115,395.95 and 45,896.93 is: 63,337.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,620.25 : 115,395.95 = 45,896.93 : x
  2. Step 2: Convert to fraction form
    83,620.25/115,395.95 = 45,896.93/x
  3. Step 3: Cross multiply
    83,620.25x = 115,395.95 × 45,896.93
  4. Step 4: Simplify right side
    83,620.25x = 5,296,319,839.43
  5. Step 5: Solve for x
    x = 5,296,319,839.43/83,620.25
  6. Step 6: Final answer
    x = 63,337.77

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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.