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Finding the Fourth Proportional to 68,307.72, 94,264.20 and 38,093.40

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Solution

The fourth proportional to 68,307.72, 94,264.20 and 38,093.40 is: 52,568.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,307.72 : 94,264.20 = 38,093.40 : x
  2. Step 2: Convert to fraction form
    68,307.72/94,264.20 = 38,093.40/x
  3. Step 3: Cross multiply
    68,307.72x = 94,264.20 × 38,093.40
  4. Step 4: Simplify right side
    68,307.72x = 3,590,843,876.28
  5. Step 5: Solve for x
    x = 3,590,843,876.28/68,307.72
  6. Step 6: Final answer
    x = 52,568.64

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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.