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Finding the Fourth Proportional to 68,072.32, 93,940.32 and 38,264.32

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Solution

The fourth proportional to 68,072.32, 93,940.32 and 38,264.32 is: 52,805.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,072.32 : 93,940.32 = 38,264.32 : x
  2. Step 2: Convert to fraction form
    68,072.32/93,940.32 = 38,264.32/x
  3. Step 3: Cross multiply
    68,072.32x = 93,940.32 × 38,264.32
  4. Step 4: Simplify right side
    68,072.32x = 3,594,562,465.38
  5. Step 5: Solve for x
    x = 3,594,562,465.38/68,072.32
  6. Step 6: Final answer
    x = 52,805.05

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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.