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Finding the Fourth Proportional to 68,352.72, 94,326.80 and 40,058.40

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Solution

The fourth proportional to 68,352.72, 94,326.80 and 40,058.40 is: 55,280.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,352.72 : 94,326.80 = 40,058.40 : x
  2. Step 2: Convert to fraction form
    68,352.72/94,326.80 = 40,058.40/x
  3. Step 3: Cross multiply
    68,352.72x = 94,326.80 × 40,058.40
  4. Step 4: Simplify right side
    68,352.72x = 3,778,580,685.12
  5. Step 5: Solve for x
    x = 3,778,580,685.12/68,352.72
  6. Step 6: Final answer
    x = 55,280.62

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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.