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Finding the Fourth Proportional to 11,392.66, 15,716.73 and 6,674.95

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Solution

The fourth proportional to 11,392.66, 15,716.73 and 6,674.95 is: 9,208.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392.66 : 15,716.73 = 6,674.95 : x
  2. Step 2: Convert to fraction form
    11,392.66/15,716.73 = 6,674.95/x
  3. Step 3: Cross multiply
    11,392.66x = 15,716.73 × 6,674.95
  4. Step 4: Simplify right side
    11,392.66x = 104,908,386.91
  5. Step 5: Solve for x
    x = 104,908,386.91/11,392.66
  6. Step 6: Final answer
    x = 9,208.42

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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.