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Finding the Fourth Proportional to 70,024.93, 96,642.58 and 39,814.78

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Solution

The fourth proportional to 70,024.93, 96,642.58 and 39,814.78 is: 54,949.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,024.93 : 96,642.58 = 39,814.78 : x
  2. Step 2: Convert to fraction form
    70,024.93/96,642.58 = 39,814.78/x
  3. Step 3: Cross multiply
    70,024.93x = 96,642.58 × 39,814.78
  4. Step 4: Simplify right side
    70,024.93x = 3,847,803,082.60
  5. Step 5: Solve for x
    x = 3,847,803,082.60/70,024.93
  6. Step 6: Final answer
    x = 54,949.04

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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.