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Finding the Fourth Proportional to 12,846.60, 17,727.66 and 7,541.51

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Solution

The fourth proportional to 12,846.60, 17,727.66 and 7,541.51 is: 10,406.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,846.60 : 17,727.66 = 7,541.51 : x
  2. Step 2: Convert to fraction form
    12,846.60/17,727.66 = 7,541.51/x
  3. Step 3: Cross multiply
    12,846.60x = 17,727.66 × 7,541.51
  4. Step 4: Simplify right side
    12,846.60x = 133,693,236.53
  5. Step 5: Solve for x
    x = 133,693,236.53/12,846.60
  6. Step 6: Final answer
    x = 10,406.90

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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.