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Finding the Fourth Proportional to 6,699.66, 9,234.78 and 5,281.00

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Solution

The fourth proportional to 6,699.66, 9,234.78 and 5,281.00 is: 7,279.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,699.66 : 9,234.78 = 5,281.00 : x
  2. Step 2: Convert to fraction form
    6,699.66/9,234.78 = 5,281.00/x
  3. Step 3: Cross multiply
    6,699.66x = 9,234.78 × 5,281.00
  4. Step 4: Simplify right side
    6,699.66x = 48,768,874.85
  5. Step 5: Solve for x
    x = 48,768,874.85/6,699.66
  6. Step 6: Final answer
    x = 7,279.30

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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.