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Finding the Fourth Proportional to 70,474.57, 97,254.95 and 38,209.23

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Solution

The fourth proportional to 70,474.57, 97,254.95 and 38,209.23 is: 52,728.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,474.57 : 97,254.95 = 38,209.23 : x
  2. Step 2: Convert to fraction form
    70,474.57/97,254.95 = 38,209.23/x
  3. Step 3: Cross multiply
    70,474.57x = 97,254.95 × 38,209.23
  4. Step 4: Simplify right side
    70,474.57x = 3,716,036,284.96
  5. Step 5: Solve for x
    x = 3,716,036,284.96/70,474.57
  6. Step 6: Final answer
    x = 52,728.76

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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.