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Finding the Fourth Proportional to 68,460, 94,476.90 and 38,246.64

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Solution

The fourth proportional to 68,460, 94,476.90 and 38,246.64 is: 52,781.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,460 : 94,476.90 = 38,246.64 : x
  2. Step 2: Convert to fraction form
    68,460/94,476.90 = 38,246.64/x
  3. Step 3: Cross multiply
    68,460x = 94,476.90 × 38,246.64
  4. Step 4: Simplify right side
    68,460x = 3,613,423,982.62
  5. Step 5: Solve for x
    x = 3,613,423,982.62/68,460
  6. Step 6: Final answer
    x = 52,781.54

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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.