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Finding the Fourth Proportional to 70,524.31, 97,323.54 and 40,310.28

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Solution

The fourth proportional to 70,524.31, 97,323.54 and 40,310.28 is: 55,628.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,524.31 : 97,323.54 = 40,310.28 : x
  2. Step 2: Convert to fraction form
    70,524.31/97,323.54 = 40,310.28/x
  3. Step 3: Cross multiply
    70,524.31x = 97,323.54 × 40,310.28
  4. Step 4: Simplify right side
    70,524.31x = 3,923,139,147.99
  5. Step 5: Solve for x
    x = 3,923,139,147.99/70,524.31
  6. Step 6: Final answer
    x = 55,628.18

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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.