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Finding the Fourth Proportional to 70,693.40, 97,557.90 and 38,865.24

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Solution

The fourth proportional to 70,693.40, 97,557.90 and 38,865.24 is: 53,634.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,693.40 : 97,557.90 = 38,865.24 : x
  2. Step 2: Convert to fraction form
    70,693.40/97,557.90 = 38,865.24/x
  3. Step 3: Cross multiply
    70,693.40x = 97,557.90 × 38,865.24
  4. Step 4: Simplify right side
    70,693.40x = 3,791,611,197.40
  5. Step 5: Solve for x
    x = 3,791,611,197.40/70,693.40
  6. Step 6: Final answer
    x = 53,634.59

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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.