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Finding the Fourth Proportional to 18,826.25, 25,980.97 and 10,328.69

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Solution

The fourth proportional to 18,826.25, 25,980.97 and 10,328.69 is: 14,254.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.25 : 25,980.97 = 10,328.69 : x
  2. Step 2: Convert to fraction form
    18,826.25/25,980.97 = 10,328.69/x
  3. Step 3: Cross multiply
    18,826.25x = 25,980.97 × 10,328.69
  4. Step 4: Simplify right side
    18,826.25x = 268,349,385.03
  5. Step 5: Solve for x
    x = 268,349,385.03/18,826.25
  6. Step 6: Final answer
    x = 14,254.00

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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.