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Finding the Fourth Proportional to 8,678.03, 11,966.73 and 7,423.24

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Solution

The fourth proportional to 8,678.03, 11,966.73 and 7,423.24 is: 10,236.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,678.03 : 11,966.73 = 7,423.24 : x
  2. Step 2: Convert to fraction form
    8,678.03/11,966.73 = 7,423.24/x
  3. Step 3: Cross multiply
    8,678.03x = 11,966.73 × 7,423.24
  4. Step 4: Simplify right side
    8,678.03x = 88,831,908.81
  5. Step 5: Solve for x
    x = 88,831,908.81/8,678.03
  6. Step 6: Final answer
    x = 10,236.41

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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.