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Finding the Fourth Proportional to 9,625.76, 14,439.20 and 2,700.80

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Solution

The fourth proportional to 9,625.76, 14,439.20 and 2,700.80 is: 4,051.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,625.76 : 14,439.20 = 2,700.80 : x
  2. Step 2: Convert to fraction form
    9,625.76/14,439.20 = 2,700.80/x
  3. Step 3: Cross multiply
    9,625.76x = 14,439.20 × 2,700.80
  4. Step 4: Simplify right side
    9,625.76x = 38,997,391.36
  5. Step 5: Solve for x
    x = 38,997,391.36/9,625.76
  6. Step 6: Final answer
    x = 4,051.36

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1.5x scale

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.