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Finding the Fourth Proportional to 8,807.64, 13,209.30 and 2,964.12

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Solution

The fourth proportional to 8,807.64, 13,209.30 and 2,964.12 is: 4,445.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807.64 : 13,209.30 = 2,964.12 : x
  2. Step 2: Convert to fraction form
    8,807.64/13,209.30 = 2,964.12/x
  3. Step 3: Cross multiply
    8,807.64x = 13,209.30 × 2,964.12
  4. Step 4: Simplify right side
    8,807.64x = 39,153,950.32
  5. Step 5: Solve for x
    x = 39,153,950.32/8,807.64
  6. Step 6: Final answer
    x = 4,445.45

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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.