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Finding the Fourth Proportional to 70,641.61, 97,442.16 and 41,941.78

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Solution

The fourth proportional to 70,641.61, 97,442.16 and 41,941.78 is: 57,853.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,641.61 : 97,442.16 = 41,941.78 : x
  2. Step 2: Convert to fraction form
    70,641.61/97,442.16 = 41,941.78/x
  3. Step 3: Cross multiply
    70,641.61x = 97,442.16 × 41,941.78
  4. Step 4: Simplify right side
    70,641.61x = 4,086,897,637.44
  5. Step 5: Solve for x
    x = 4,086,897,637.44/70,641.61
  6. Step 6: Final answer
    x = 57,853.97

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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.