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Finding the Fourth Proportional to 12,769.61, 17,623.51 and 7,464.11

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Solution

The fourth proportional to 12,769.61, 17,623.51 and 7,464.11 is: 10,301.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,769.61 : 17,623.51 = 7,464.11 : x
  2. Step 2: Convert to fraction form
    12,769.61/17,623.51 = 7,464.11/x
  3. Step 3: Cross multiply
    12,769.61x = 17,623.51 × 7,464.11
  4. Step 4: Simplify right side
    12,769.61x = 131,543,710.45
  5. Step 5: Solve for x
    x = 131,543,710.45/12,769.61
  6. Step 6: Final answer
    x = 10,301.31

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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.