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Finding the Fourth Proportional to 14,967.42, 20,654.10 and 8,253.10

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Solution

The fourth proportional to 14,967.42, 20,654.10 and 8,253.10 is: 11,388.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,967.42 : 20,654.10 = 8,253.10 : x
  2. Step 2: Convert to fraction form
    14,967.42/20,654.10 = 8,253.10/x
  3. Step 3: Cross multiply
    14,967.42x = 20,654.10 × 8,253.10
  4. Step 4: Simplify right side
    14,967.42x = 170,460,352.71
  5. Step 5: Solve for x
    x = 170,460,352.71/14,967.42
  6. Step 6: Final answer
    x = 11,388.76

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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.