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Finding the Fourth Proportional to 70,486.49, 97,258.92 and 40,267.64

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Solution

The fourth proportional to 70,486.49, 97,258.92 and 40,267.64 is: 55,562.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,486.49 : 97,258.92 = 40,267.64 : x
  2. Step 2: Convert to fraction form
    70,486.49/97,258.92 = 40,267.64/x
  3. Step 3: Cross multiply
    70,486.49x = 97,258.92 × 40,267.64
  4. Step 4: Simplify right side
    70,486.49x = 3,916,387,177.35
  5. Step 5: Solve for x
    x = 3,916,387,177.35/70,486.49
  6. Step 6: Final answer
    x = 55,562.24

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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.