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Finding the Fourth Proportional to 7,001.70, 9,658.74 and 4,481.10

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Solution

The fourth proportional to 7,001.70, 9,658.74 and 4,481.10 is: 6,181.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,001.70 : 9,658.74 = 4,481.10 : x
  2. Step 2: Convert to fraction form
    7,001.70/9,658.74 = 4,481.10/x
  3. Step 3: Cross multiply
    7,001.70x = 9,658.74 × 4,481.10
  4. Step 4: Simplify right side
    7,001.70x = 43,281,779.81
  5. Step 5: Solve for x
    x = 43,281,779.81/7,001.70
  6. Step 6: Final answer
    x = 6,181.61

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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.