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Finding the Fourth Proportional to 18,959.61, 26,164.32 and 10,576.65

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Solution

The fourth proportional to 18,959.61, 26,164.32 and 10,576.65 is: 14,595.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,959.61 : 26,164.32 = 10,576.65 : x
  2. Step 2: Convert to fraction form
    18,959.61/26,164.32 = 10,576.65/x
  3. Step 3: Cross multiply
    18,959.61x = 26,164.32 × 10,576.65
  4. Step 4: Simplify right side
    18,959.61x = 276,730,855.13
  5. Step 5: Solve for x
    x = 276,730,855.13/18,959.61
  6. Step 6: Final answer
    x = 14,595.81

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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.