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Finding the Fourth Proportional to 6,886.04, 10,390.61 and 6,886.04

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Solution

The fourth proportional to 6,886.04, 10,390.61 and 6,886.04 is: 10,390.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,886.04 : 10,390.61 = 6,886.04 : x
  2. Step 2: Convert to fraction form
    6,886.04/10,390.61 = 6,886.04/x
  3. Step 3: Cross multiply
    6,886.04x = 10,390.61 × 6,886.04
  4. Step 4: Simplify right side
    6,886.04x = 71,550,177.76
  5. Step 5: Solve for x
    x = 71,550,177.76/6,886.04
  6. Step 6: Final answer
    x = 10,390.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.