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Finding the Fourth Proportional to 14,483.50, 19,987.25 and 8,195.74

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Solution

The fourth proportional to 14,483.50, 19,987.25 and 8,195.74 is: 11,310.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,483.50 : 19,987.25 = 8,195.74 : x
  2. Step 2: Convert to fraction form
    14,483.50/19,987.25 = 8,195.74/x
  3. Step 3: Cross multiply
    14,483.50x = 19,987.25 × 8,195.74
  4. Step 4: Simplify right side
    14,483.50x = 163,810,304.32
  5. Step 5: Solve for x
    x = 163,810,304.32/14,483.50
  6. Step 6: Final answer
    x = 11,310.13

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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.