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Finding the Fourth Proportional to 6,890.92, 10,347.90 and 6,837.16

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Solution

The fourth proportional to 6,890.92, 10,347.90 and 6,837.16 is: 10,267.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,890.92 : 10,347.90 = 6,837.16 : x
  2. Step 2: Convert to fraction form
    6,890.92/10,347.90 = 6,837.16/x
  3. Step 3: Cross multiply
    6,890.92x = 10,347.90 × 6,837.16
  4. Step 4: Simplify right side
    6,890.92x = 70,750,247.96
  5. Step 5: Solve for x
    x = 70,750,247.96/6,890.92
  6. Step 6: Final answer
    x = 10,267.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.