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Finding the Fourth Proportional to 16,261.51, 22,440.75 and 8,809.51

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Solution

The fourth proportional to 16,261.51, 22,440.75 and 8,809.51 is: 12,157.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,261.51 : 22,440.75 = 8,809.51 : x
  2. Step 2: Convert to fraction form
    16,261.51/22,440.75 = 8,809.51/x
  3. Step 3: Cross multiply
    16,261.51x = 22,440.75 × 8,809.51
  4. Step 4: Simplify right side
    16,261.51x = 197,692,011.53
  5. Step 5: Solve for x
    x = 197,692,011.53/16,261.51
  6. Step 6: Final answer
    x = 12,157.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.