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Finding the Fourth Proportional to 8,658.48, 11,956.56 and 7,468.32

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Solution

The fourth proportional to 8,658.48, 11,956.56 and 7,468.32 is: 10,313.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,658.48 : 11,956.56 = 7,468.32 : x
  2. Step 2: Convert to fraction form
    8,658.48/11,956.56 = 7,468.32/x
  3. Step 3: Cross multiply
    8,658.48x = 11,956.56 × 7,468.32
  4. Step 4: Simplify right side
    8,658.48x = 89,295,416.18
  5. Step 5: Solve for x
    x = 89,295,416.18/8,658.48
  6. Step 6: Final answer
    x = 10,313.06

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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.