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Finding the Fourth Proportional to 8,736.68, 12,047.04 and 7,607.54

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Solution

The fourth proportional to 8,736.68, 12,047.04 and 7,607.54 is: 10,490.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736.68 : 12,047.04 = 7,607.54 : x
  2. Step 2: Convert to fraction form
    8,736.68/12,047.04 = 7,607.54/x
  3. Step 3: Cross multiply
    8,736.68x = 12,047.04 × 7,607.54
  4. Step 4: Simplify right side
    8,736.68x = 91,648,338.68
  5. Step 5: Solve for x
    x = 91,648,338.68/8,736.68
  6. Step 6: Final answer
    x = 10,490.06

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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.