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Finding the Fourth Proportional to 8,515.98, 11,745.14 and 7,010.60

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Solution

The fourth proportional to 8,515.98, 11,745.14 and 7,010.60 is: 9,668.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,515.98 : 11,745.14 = 7,010.60 : x
  2. Step 2: Convert to fraction form
    8,515.98/11,745.14 = 7,010.60/x
  3. Step 3: Cross multiply
    8,515.98x = 11,745.14 × 7,010.60
  4. Step 4: Simplify right side
    8,515.98x = 82,340,384.71
  5. Step 5: Solve for x
    x = 82,340,384.71/8,515.98
  6. Step 6: Final answer
    x = 9,668.93

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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.