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Finding the Fourth Proportional to 8,772.77, 13,156.20 and 2,848.10

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Solution

The fourth proportional to 8,772.77, 13,156.20 and 2,848.10 is: 4,271.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.77 : 13,156.20 = 2,848.10 : x
  2. Step 2: Convert to fraction form
    8,772.77/13,156.20 = 2,848.10/x
  3. Step 3: Cross multiply
    8,772.77x = 13,156.20 × 2,848.10
  4. Step 4: Simplify right side
    8,772.77x = 37,470,107.44
  5. Step 5: Solve for x
    x = 37,470,107.44/8,772.77
  6. Step 6: Final answer
    x = 4,271.18

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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.