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Finding the Fourth Proportional to 83,625.84, 115,403.49 and 45,899.28

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Solution

The fourth proportional to 83,625.84, 115,403.49 and 45,899.28 is: 63,340.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,625.84 : 115,403.49 = 45,899.28 : x
  2. Step 2: Convert to fraction form
    83,625.84/115,403.49 = 45,899.28/x
  3. Step 3: Cross multiply
    83,625.84x = 115,403.49 × 45,899.28
  4. Step 4: Simplify right side
    83,625.84x = 5,296,937,100.49
  5. Step 5: Solve for x
    x = 5,296,937,100.49/83,625.84
  6. Step 6: Final answer
    x = 63,340.91

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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.