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Finding the Fourth Proportional to 9,626.76, 14,437.20 and 4,080

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Solution

The fourth proportional to 9,626.76, 14,437.20 and 4,080 is: 6,118.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,626.76 : 14,437.20 = 4,080 : x
  2. Step 2: Convert to fraction form
    9,626.76/14,437.20 = 4,080/x
  3. Step 3: Cross multiply
    9,626.76x = 14,437.20 × 4,080
  4. Step 4: Simplify right side
    9,626.76x = 58,903,776
  5. Step 5: Solve for x
    x = 58,903,776/9,626.76
  6. Step 6: Final answer
    x = 6,118.75

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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.