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Finding the Fourth Proportional to 8,653.76, 12,949.14 and 7,497.26

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Solution

The fourth proportional to 8,653.76, 12,949.14 and 7,497.26 is: 11,218.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,653.76 : 12,949.14 = 7,497.26 : x
  2. Step 2: Convert to fraction form
    8,653.76/12,949.14 = 7,497.26/x
  3. Step 3: Cross multiply
    8,653.76x = 12,949.14 × 7,497.26
  4. Step 4: Simplify right side
    8,653.76x = 97,083,069.36
  5. Step 5: Solve for x
    x = 97,083,069.36/8,653.76
  6. Step 6: Final answer
    x = 11,218.60

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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.