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Finding the Fourth Proportional to 12,754.18, 19,160.07 and 7,563.46

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Solution

The fourth proportional to 12,754.18, 19,160.07 and 7,563.46 is: 11,362.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,754.18 : 19,160.07 = 7,563.46 : x
  2. Step 2: Convert to fraction form
    12,754.18/19,160.07 = 7,563.46/x
  3. Step 3: Cross multiply
    12,754.18x = 19,160.07 × 7,563.46
  4. Step 4: Simplify right side
    12,754.18x = 144,916,423.04
  5. Step 5: Solve for x
    x = 144,916,423.04/12,754.18
  6. Step 6: Final answer
    x = 11,362.27

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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.