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Finding the Fourth Proportional to 9,387.56, 14,068.18 and 7,298

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Solution

The fourth proportional to 9,387.56, 14,068.18 and 7,298 is: 10,936.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,387.56 : 14,068.18 = 7,298 : x
  2. Step 2: Convert to fraction form
    9,387.56/14,068.18 = 7,298/x
  3. Step 3: Cross multiply
    9,387.56x = 14,068.18 × 7,298
  4. Step 4: Simplify right side
    9,387.56x = 102,669,577.64
  5. Step 5: Solve for x
    x = 102,669,577.64/9,387.56
  6. Step 6: Final answer
    x = 10,936.77

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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.