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Finding the Fourth Proportional to 14,865.22, 20,515.71 and 8,492.82

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Solution

The fourth proportional to 14,865.22, 20,515.71 and 8,492.82 is: 11,721.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,865.22 : 20,515.71 = 8,492.82 : x
  2. Step 2: Convert to fraction form
    14,865.22/20,515.71 = 8,492.82/x
  3. Step 3: Cross multiply
    14,865.22x = 20,515.71 × 8,492.82
  4. Step 4: Simplify right side
    14,865.22x = 174,236,232.20
  5. Step 5: Solve for x
    x = 174,236,232.20/14,865.22
  6. Step 6: Final answer
    x = 11,721.07

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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.