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Finding the Fourth Proportional to 14,871.77, 20,524.75 and 8,903.43

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Solution

The fourth proportional to 14,871.77, 20,524.75 and 8,903.43 is: 12,287.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,871.77 : 20,524.75 = 8,903.43 : x
  2. Step 2: Convert to fraction form
    14,871.77/20,524.75 = 8,903.43/x
  3. Step 3: Cross multiply
    14,871.77x = 20,524.75 × 8,903.43
  4. Step 4: Simplify right side
    14,871.77x = 182,740,674.89
  5. Step 5: Solve for x
    x = 182,740,674.89/14,871.77
  6. Step 6: Final answer
    x = 12,287.76

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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.