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Finding the Fourth Proportional to 9,984, 14,976 and 3,058.50

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Solution

The fourth proportional to 9,984, 14,976 and 3,058.50 is: 4,587.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,984 : 14,976 = 3,058.50 : x
  2. Step 2: Convert to fraction form
    9,984/14,976 = 3,058.50/x
  3. Step 3: Cross multiply
    9,984x = 14,976 × 3,058.50
  4. Step 4: Simplify right side
    9,984x = 45,804,096
  5. Step 5: Solve for x
    x = 45,804,096/9,984
  6. Step 6: Final answer
    x = 4,587.75

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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.