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Finding the Fourth Proportional to 8,772.64, 13,159.02 and 3,508.09

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Solution

The fourth proportional to 8,772.64, 13,159.02 and 3,508.09 is: 5,262.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.64 : 13,159.02 = 3,508.09 : x
  2. Step 2: Convert to fraction form
    8,772.64/13,159.02 = 3,508.09/x
  3. Step 3: Cross multiply
    8,772.64x = 13,159.02 × 3,508.09
  4. Step 4: Simplify right side
    8,772.64x = 46,163,008.93
  5. Step 5: Solve for x
    x = 46,163,008.93/8,772.64
  6. Step 6: Final answer
    x = 5,262.16

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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.