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Finding the Fourth Proportional to 14,871.70, 20,524.68 and 8,499.32

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Solution

The fourth proportional to 14,871.70, 20,524.68 and 8,499.32 is: 11,730.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,871.70 : 20,524.68 = 8,499.32 : x
  2. Step 2: Convert to fraction form
    14,871.70/20,524.68 = 8,499.32/x
  3. Step 3: Cross multiply
    14,871.70x = 20,524.68 × 8,499.32
  4. Step 4: Simplify right side
    14,871.70x = 174,445,823.22
  5. Step 5: Solve for x
    x = 174,445,823.22/14,871.70
  6. Step 6: Final answer
    x = 11,730.05

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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.