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Finding the Fourth Proportional to 13,844.71, 19,102.02 and 7,875.41

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Solution

The fourth proportional to 13,844.71, 19,102.02 and 7,875.41 is: 10,865.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,844.71 : 19,102.02 = 7,875.41 : x
  2. Step 2: Convert to fraction form
    13,844.71/19,102.02 = 7,875.41/x
  3. Step 3: Cross multiply
    13,844.71x = 19,102.02 × 7,875.41
  4. Step 4: Simplify right side
    13,844.71x = 150,436,287.08
  5. Step 5: Solve for x
    x = 150,436,287.08/13,844.71
  6. Step 6: Final answer
    x = 10,865.98

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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.