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Finding the Fourth Proportional to 29,455.13, 40,648.08 and 16,879.88

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Solution

The fourth proportional to 29,455.13, 40,648.08 and 16,879.88 is: 23,294.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,455.13 : 40,648.08 = 16,879.88 : x
  2. Step 2: Convert to fraction form
    29,455.13/40,648.08 = 16,879.88/x
  3. Step 3: Cross multiply
    29,455.13x = 40,648.08 × 16,879.88
  4. Step 4: Simplify right side
    29,455.13x = 686,134,509.39
  5. Step 5: Solve for x
    x = 686,134,509.39/29,455.13
  6. Step 6: Final answer
    x = 23,294.23

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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.