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Finding the Fourth Proportional to 8,788.36, 12,133.06 and 7,607.56

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Solution

The fourth proportional to 8,788.36, 12,133.06 and 7,607.56 is: 10,502.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,788.36 : 12,133.06 = 7,607.56 : x
  2. Step 2: Convert to fraction form
    8,788.36/12,133.06 = 7,607.56/x
  3. Step 3: Cross multiply
    8,788.36x = 12,133.06 × 7,607.56
  4. Step 4: Simplify right side
    8,788.36x = 92,302,981.93
  5. Step 5: Solve for x
    x = 92,302,981.93/8,788.36
  6. Step 6: Final answer
    x = 10,502.87

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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.