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Finding the Fourth Proportional to 70,611.95, 97,403.82 and 42,301.24

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Solution

The fourth proportional to 70,611.95, 97,403.82 and 42,301.24 is: 58,351.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,611.95 : 97,403.82 = 42,301.24 : x
  2. Step 2: Convert to fraction form
    70,611.95/97,403.82 = 42,301.24/x
  3. Step 3: Cross multiply
    70,611.95x = 97,403.82 × 42,301.24
  4. Step 4: Simplify right side
    70,611.95x = 4,120,301,964.60
  5. Step 5: Solve for x
    x = 4,120,301,964.60/70,611.95
  6. Step 6: Final answer
    x = 58,351.34

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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.