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Finding the Fourth Proportional to 68,630.34, 94,705.49 and 38,410.57

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Solution

The fourth proportional to 68,630.34, 94,705.49 and 38,410.57 is: 53,004.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,630.34 : 94,705.49 = 38,410.57 : x
  2. Step 2: Convert to fraction form
    68,630.34/94,705.49 = 38,410.57/x
  3. Step 3: Cross multiply
    68,630.34x = 94,705.49 × 38,410.57
  4. Step 4: Simplify right side
    68,630.34x = 3,637,691,853.03
  5. Step 5: Solve for x
    x = 3,637,691,853.03/68,630.34
  6. Step 6: Final answer
    x = 53,004.14

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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.