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Finding the Fourth Proportional to 70,863.94, 97,788.09 and 40,654.18

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Solution

The fourth proportional to 70,863.94, 97,788.09 and 40,654.18 is: 56,100.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,863.94 : 97,788.09 = 40,654.18 : x
  2. Step 2: Convert to fraction form
    70,863.94/97,788.09 = 40,654.18/x
  3. Step 3: Cross multiply
    70,863.94x = 97,788.09 × 40,654.18
  4. Step 4: Simplify right side
    70,863.94x = 3,975,494,612.72
  5. Step 5: Solve for x
    x = 3,975,494,612.72/70,863.94
  6. Step 6: Final answer
    x = 56,100.39

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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.