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Finding the Fourth Proportional to 14,625.26, 20,182.87 and 7,910.87

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Solution

The fourth proportional to 14,625.26, 20,182.87 and 7,910.87 is: 10,917.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,625.26 : 20,182.87 = 7,910.87 : x
  2. Step 2: Convert to fraction form
    14,625.26/20,182.87 = 7,910.87/x
  3. Step 3: Cross multiply
    14,625.26x = 20,182.87 × 7,910.87
  4. Step 4: Simplify right side
    14,625.26x = 159,663,969.77
  5. Step 5: Solve for x
    x = 159,663,969.77/14,625.26
  6. Step 6: Final answer
    x = 10,917.00

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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.