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Finding the Fourth Proportional to 12,966.44, 19,448.04 and 3,607.16

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Solution

The fourth proportional to 12,966.44, 19,448.04 and 3,607.16 is: 5,410.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,966.44 : 19,448.04 = 3,607.16 : x
  2. Step 2: Convert to fraction form
    12,966.44/19,448.04 = 3,607.16/x
  3. Step 3: Cross multiply
    12,966.44x = 19,448.04 × 3,607.16
  4. Step 4: Simplify right side
    12,966.44x = 70,152,191.97
  5. Step 5: Solve for x
    x = 70,152,191.97/12,966.44
  6. Step 6: Final answer
    x = 5,410.29

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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.