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Finding the Fourth Proportional to 13,947.84, 19,248.03 and 7,660.22

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Solution

The fourth proportional to 13,947.84, 19,248.03 and 7,660.22 is: 10,571.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,947.84 : 19,248.03 = 7,660.22 : x
  2. Step 2: Convert to fraction form
    13,947.84/19,248.03 = 7,660.22/x
  3. Step 3: Cross multiply
    13,947.84x = 19,248.03 × 7,660.22
  4. Step 4: Simplify right side
    13,947.84x = 147,444,048.13
  5. Step 5: Solve for x
    x = 147,444,048.13/13,947.84
  6. Step 6: Final answer
    x = 10,571.10

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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.