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Finding the Fourth Proportional to 68,341.79, 94,311.78 and 38,126.30

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Solution

The fourth proportional to 68,341.79, 94,311.78 and 38,126.30 is: 52,614.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,341.79 : 94,311.78 = 38,126.30 : x
  2. Step 2: Convert to fraction form
    68,341.79/94,311.78 = 38,126.30/x
  3. Step 3: Cross multiply
    68,341.79x = 94,311.78 × 38,126.30
  4. Step 4: Simplify right side
    68,341.79x = 3,595,758,603.28
  5. Step 5: Solve for x
    x = 3,595,758,603.28/68,341.79
  6. Step 6: Final answer
    x = 52,614.34

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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.