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Finding the Fourth Proportional to 9,358.84, 12,919.80 and 6,528.52

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Solution

The fourth proportional to 9,358.84, 12,919.80 and 6,528.52 is: 9,012.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,358.84 : 12,919.80 = 6,528.52 : x
  2. Step 2: Convert to fraction form
    9,358.84/12,919.80 = 6,528.52/x
  3. Step 3: Cross multiply
    9,358.84x = 12,919.80 × 6,528.52
  4. Step 4: Simplify right side
    9,358.84x = 84,347,172.70
  5. Step 5: Solve for x
    x = 84,347,172.70/9,358.84
  6. Step 6: Final answer
    x = 9,012.57

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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.