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Finding the Fourth Proportional to 6,675.67, 9,210.00 and 5,143.10

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Solution

The fourth proportional to 6,675.67, 9,210.00 and 5,143.10 is: 7,095.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,675.67 : 9,210.00 = 5,143.10 : x
  2. Step 2: Convert to fraction form
    6,675.67/9,210.00 = 5,143.10/x
  3. Step 3: Cross multiply
    6,675.67x = 9,210.00 × 5,143.10
  4. Step 4: Simplify right side
    6,675.67x = 47,367,924.24
  5. Step 5: Solve for x
    x = 47,367,924.24/6,675.67
  6. Step 6: Final answer
    x = 7,095.61

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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.