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Finding the Fourth Proportional to 70,233.64, 96,931.34 and 40,029.82

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Solution

The fourth proportional to 70,233.64, 96,931.34 and 40,029.82 is: 55,246.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,233.64 : 96,931.34 = 40,029.82 : x
  2. Step 2: Convert to fraction form
    70,233.64/96,931.34 = 40,029.82/x
  3. Step 3: Cross multiply
    70,233.64x = 96,931.34 × 40,029.82
  4. Step 4: Simplify right side
    70,233.64x = 3,880,144,092.56
  5. Step 5: Solve for x
    x = 3,880,144,092.56/70,233.64
  6. Step 6: Final answer
    x = 55,246.23

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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.