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Finding the Fourth Proportional to 10,671.44, 15,967.07 and 7,390.94

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Solution

The fourth proportional to 10,671.44, 15,967.07 and 7,390.94 is: 11,058.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,671.44 : 15,967.07 = 7,390.94 : x
  2. Step 2: Convert to fraction form
    10,671.44/15,967.07 = 7,390.94/x
  3. Step 3: Cross multiply
    10,671.44x = 15,967.07 × 7,390.94
  4. Step 4: Simplify right side
    10,671.44x = 118,011,619.39
  5. Step 5: Solve for x
    x = 118,011,619.39/10,671.44
  6. Step 6: Final answer
    x = 11,058.64

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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.