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Finding the Fourth Proportional to 68,591.82, 103,401.84 and 64,019.63

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Solution

The fourth proportional to 68,591.82, 103,401.84 and 64,019.63 is: 96,509.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,591.82 : 103,401.84 = 64,019.63 : x
  2. Step 2: Convert to fraction form
    68,591.82/103,401.84 = 64,019.63/x
  3. Step 3: Cross multiply
    68,591.82x = 103,401.84 × 64,019.63
  4. Step 4: Simplify right side
    68,591.82x = 6,619,746,701.01
  5. Step 5: Solve for x
    x = 6,619,746,701.01/68,591.82
  6. Step 6: Final answer
    x = 96,509.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.