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Finding the Fourth Proportional to 68,585.76, 94,643.84 and 38,365.86

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Solution

The fourth proportional to 68,585.76, 94,643.84 and 38,365.86 is: 52,942.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,585.76 : 94,643.84 = 38,365.86 : x
  2. Step 2: Convert to fraction form
    68,585.76/94,643.84 = 38,365.86/x
  3. Step 3: Cross multiply
    68,585.76x = 94,643.84 × 38,365.86
  4. Step 4: Simplify right side
    68,585.76x = 3,631,092,315.30
  5. Step 5: Solve for x
    x = 3,631,092,315.30/68,585.76
  6. Step 6: Final answer
    x = 52,942.36

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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.