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Finding the Fourth Proportional to 8,375.04, 11,547.84 and 7,866.48

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Solution

The fourth proportional to 8,375.04, 11,547.84 and 7,866.48 is: 10,846.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,375.04 : 11,547.84 = 7,866.48 : x
  2. Step 2: Convert to fraction form
    8,375.04/11,547.84 = 7,866.48/x
  3. Step 3: Cross multiply
    8,375.04x = 11,547.84 × 7,866.48
  4. Step 4: Simplify right side
    8,375.04x = 90,840,852.40
  5. Step 5: Solve for x
    x = 90,840,852.40/8,375.04
  6. Step 6: Final answer
    x = 10,846.62

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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.