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Finding the Fourth Proportional to 68,757.99, 94,884.32 and 38,130.91

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Solution

The fourth proportional to 68,757.99, 94,884.32 and 38,130.91 is: 52,619.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,757.99 : 94,884.32 = 38,130.91 : x
  2. Step 2: Convert to fraction form
    68,757.99/94,884.32 = 38,130.91/x
  3. Step 3: Cross multiply
    68,757.99x = 94,884.32 × 38,130.91
  4. Step 4: Simplify right side
    68,757.99x = 3,618,024,801.26
  5. Step 5: Solve for x
    x = 3,618,024,801.26/68,757.99
  6. Step 6: Final answer
    x = 52,619.70

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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.