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Finding the Fourth Proportional to 9,266.66, 13,913.84 and 9,128.28

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Solution

The fourth proportional to 9,266.66, 13,913.84 and 9,128.28 is: 13,706.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,266.66 : 13,913.84 = 9,128.28 : x
  2. Step 2: Convert to fraction form
    9,266.66/13,913.84 = 9,128.28/x
  3. Step 3: Cross multiply
    9,266.66x = 13,913.84 × 9,128.28
  4. Step 4: Simplify right side
    9,266.66x = 127,009,427.40
  5. Step 5: Solve for x
    x = 127,009,427.40/9,266.66
  6. Step 6: Final answer
    x = 13,706.06

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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.