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Finding the Fourth Proportional to 68,603.52, 94,667.22 and 38,387.28

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Solution

The fourth proportional to 68,603.52, 94,667.22 and 38,387.28 is: 52,971.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,603.52 : 94,667.22 = 38,387.28 : x
  2. Step 2: Convert to fraction form
    68,603.52/94,667.22 = 38,387.28/x
  3. Step 3: Cross multiply
    68,603.52x = 94,667.22 × 38,387.28
  4. Step 4: Simplify right side
    68,603.52x = 3,634,017,080.96
  5. Step 5: Solve for x
    x = 3,634,017,080.96/68,603.52
  6. Step 6: Final answer
    x = 52,971.29

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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.