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Finding the Fourth Proportional to 8,895.28, 12,266.64 and 6,905.14

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Solution

The fourth proportional to 8,895.28, 12,266.64 and 6,905.14 is: 9,522.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,895.28 : 12,266.64 = 6,905.14 : x
  2. Step 2: Convert to fraction form
    8,895.28/12,266.64 = 6,905.14/x
  3. Step 3: Cross multiply
    8,895.28x = 12,266.64 × 6,905.14
  4. Step 4: Simplify right side
    8,895.28x = 84,702,866.53
  5. Step 5: Solve for x
    x = 84,702,866.53/8,895.28
  6. Step 6: Final answer
    x = 9,522.23

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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.