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Finding the Fourth Proportional to 19,264.81, 28,877.44 and 9,254.54

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Solution

The fourth proportional to 19,264.81, 28,877.44 and 9,254.54 is: 13,872.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,264.81 : 28,877.44 = 9,254.54 : x
  2. Step 2: Convert to fraction form
    19,264.81/28,877.44 = 9,254.54/x
  3. Step 3: Cross multiply
    19,264.81x = 28,877.44 × 9,254.54
  4. Step 4: Simplify right side
    19,264.81x = 267,247,423.35
  5. Step 5: Solve for x
    x = 267,247,423.35/19,264.81
  6. Step 6: Final answer
    x = 13,872.31

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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.