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Finding the Fourth Proportional to 8,698.61, 11,995.26 and 7,443.83

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Solution

The fourth proportional to 8,698.61, 11,995.26 and 7,443.83 is: 10,264.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,698.61 : 11,995.26 = 7,443.83 : x
  2. Step 2: Convert to fraction form
    8,698.61/11,995.26 = 7,443.83/x
  3. Step 3: Cross multiply
    8,698.61x = 11,995.26 × 7,443.83
  4. Step 4: Simplify right side
    8,698.61x = 89,290,676.25
  5. Step 5: Solve for x
    x = 89,290,676.25/8,698.61
  6. Step 6: Final answer
    x = 10,264.94

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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.