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Finding the Fourth Proportional to 25,339.83, 34,971.12 and 14,728.79

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Solution

The fourth proportional to 25,339.83, 34,971.12 and 14,728.79 is: 20,326.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,339.83 : 34,971.12 = 14,728.79 : x
  2. Step 2: Convert to fraction form
    25,339.83/34,971.12 = 14,728.79/x
  3. Step 3: Cross multiply
    25,339.83x = 34,971.12 × 14,728.79
  4. Step 4: Simplify right side
    25,339.83x = 515,082,107.69
  5. Step 5: Solve for x
    x = 515,082,107.69/25,339.83
  6. Step 6: Final answer
    x = 20,326.98

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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.