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Finding the Fourth Proportional to 70,436.60, 97,202.06 and 38,607.48

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Solution

The fourth proportional to 70,436.60, 97,202.06 and 38,607.48 is: 53,278.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,436.60 : 97,202.06 = 38,607.48 : x
  2. Step 2: Convert to fraction form
    70,436.60/97,202.06 = 38,607.48/x
  3. Step 3: Cross multiply
    70,436.60x = 97,202.06 × 38,607.48
  4. Step 4: Simplify right side
    70,436.60x = 3,752,726,587.41
  5. Step 5: Solve for x
    x = 3,752,726,587.41/70,436.60
  6. Step 6: Final answer
    x = 53,278.08

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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.