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Finding the Fourth Proportional to 14,980.17, 20,672.58 and 8,266.22

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Solution

The fourth proportional to 14,980.17, 20,672.58 and 8,266.22 is: 11,407.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,980.17 : 20,672.58 = 8,266.22 : x
  2. Step 2: Convert to fraction form
    14,980.17/20,672.58 = 8,266.22/x
  3. Step 3: Cross multiply
    14,980.17x = 20,672.58 × 8,266.22
  4. Step 4: Simplify right side
    14,980.17x = 170,884,094.25
  5. Step 5: Solve for x
    x = 170,884,094.25/14,980.17
  6. Step 6: Final answer
    x = 11,407.35

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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.