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Finding the Fourth Proportional to 64,209.66, 88,693.99 and 49,286.72

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Solution

The fourth proportional to 64,209.66, 88,693.99 and 49,286.72 is: 68,080.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,209.66 : 88,693.99 = 49,286.72 : x
  2. Step 2: Convert to fraction form
    64,209.66/88,693.99 = 49,286.72/x
  3. Step 3: Cross multiply
    64,209.66x = 88,693.99 × 49,286.72
  4. Step 4: Simplify right side
    64,209.66x = 4,371,435,850.81
  5. Step 5: Solve for x
    x = 4,371,435,850.81/64,209.66
  6. Step 6: Final answer
    x = 68,080.66

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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.