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Finding the Fourth Proportional to 9,294.70, 13,943.20 and 3,055.40

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Solution

The fourth proportional to 9,294.70, 13,943.20 and 3,055.40 is: 4,583.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,294.70 : 13,943.20 = 3,055.40 : x
  2. Step 2: Convert to fraction form
    9,294.70/13,943.20 = 3,055.40/x
  3. Step 3: Cross multiply
    9,294.70x = 13,943.20 × 3,055.40
  4. Step 4: Simplify right side
    9,294.70x = 42,602,053.28
  5. Step 5: Solve for x
    x = 42,602,053.28/9,294.70
  6. Step 6: Final answer
    x = 4,583.48

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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.