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Finding the Fourth Proportional to 45,695.62, 62,919.77 and 39,998.49

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Solution

The fourth proportional to 45,695.62, 62,919.77 and 39,998.49 is: 55,075.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,695.62 : 62,919.77 = 39,998.49 : x
  2. Step 2: Convert to fraction form
    45,695.62/62,919.77 = 39,998.49/x
  3. Step 3: Cross multiply
    45,695.62x = 62,919.77 × 39,998.49
  4. Step 4: Simplify right side
    45,695.62x = 2,516,695,580.20
  5. Step 5: Solve for x
    x = 2,516,695,580.20/45,695.62
  6. Step 6: Final answer
    x = 55,075.20

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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.