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Finding the Fourth Proportional to 14,255.16, 19,671.92 and 7,967.52

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Solution

The fourth proportional to 14,255.16, 19,671.92 and 7,967.52 is: 10,995.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,255.16 : 19,671.92 = 7,967.52 : x
  2. Step 2: Convert to fraction form
    14,255.16/19,671.92 = 7,967.52/x
  3. Step 3: Cross multiply
    14,255.16x = 19,671.92 × 7,967.52
  4. Step 4: Simplify right side
    14,255.16x = 156,736,416.04
  5. Step 5: Solve for x
    x = 156,736,416.04/14,255.16
  6. Step 6: Final answer
    x = 10,995.07

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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.