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Finding the Fourth Proportional to 7,400.76, 11,098.10 and 3,698.58

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Solution

The fourth proportional to 7,400.76, 11,098.10 and 3,698.58 is: 5,546.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,400.76 : 11,098.10 = 3,698.58 : x
  2. Step 2: Convert to fraction form
    7,400.76/11,098.10 = 3,698.58/x
  3. Step 3: Cross multiply
    7,400.76x = 11,098.10 × 3,698.58
  4. Step 4: Simplify right side
    7,400.76x = 41,047,210.70
  5. Step 5: Solve for x
    x = 41,047,210.70/7,400.76
  6. Step 6: Final answer
    x = 5,546.35

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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.