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Finding the Fourth Proportional to 14,272.16, 19,696.52 and 7,984.52

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Solution

The fourth proportional to 14,272.16, 19,696.52 and 7,984.52 is: 11,019.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,272.16 : 19,696.52 = 7,984.52 : x
  2. Step 2: Convert to fraction form
    14,272.16/19,696.52 = 7,984.52/x
  3. Step 3: Cross multiply
    14,272.16x = 19,696.52 × 7,984.52
  4. Step 4: Simplify right side
    14,272.16x = 157,267,257.87
  5. Step 5: Solve for x
    x = 157,267,257.87/14,272.16
  6. Step 6: Final answer
    x = 11,019.16

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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.