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Finding the Fourth Proportional to 14,208.32, 19,604.52 and 7,919.52

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Solution

The fourth proportional to 14,208.32, 19,604.52 and 7,919.52 is: 10,927.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,208.32 : 19,604.52 = 7,919.52 : x
  2. Step 2: Convert to fraction form
    14,208.32/19,604.52 = 7,919.52/x
  3. Step 3: Cross multiply
    14,208.32x = 19,604.52 × 7,919.52
  4. Step 4: Simplify right side
    14,208.32x = 155,258,388.23
  5. Step 5: Solve for x
    x = 155,258,388.23/14,208.32
  6. Step 6: Final answer
    x = 10,927.29

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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.