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Finding the Fourth Proportional to 8,911.84, 13,363.81 and 4,751.08

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Solution

The fourth proportional to 8,911.84, 13,363.81 and 4,751.08 is: 7,124.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.84 : 13,363.81 = 4,751.08 : x
  2. Step 2: Convert to fraction form
    8,911.84/13,363.81 = 4,751.08/x
  3. Step 3: Cross multiply
    8,911.84x = 13,363.81 × 4,751.08
  4. Step 4: Simplify right side
    8,911.84x = 63,492,530.41
  5. Step 5: Solve for x
    x = 63,492,530.41/8,911.84
  6. Step 6: Final answer
    x = 7,124.51

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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.