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Finding the Fourth Proportional to 68,827.64, 94,980.64 and 38,612.42

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Solution

The fourth proportional to 68,827.64, 94,980.64 and 38,612.42 is: 53,284.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,827.64 : 94,980.64 = 38,612.42 : x
  2. Step 2: Convert to fraction form
    68,827.64/94,980.64 = 38,612.42/x
  3. Step 3: Cross multiply
    68,827.64x = 94,980.64 × 38,612.42
  4. Step 4: Simplify right side
    68,827.64x = 3,667,431,695.58
  5. Step 5: Solve for x
    x = 3,667,431,695.58/68,827.64
  6. Step 6: Final answer
    x = 53,284.29

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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.