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Finding the Fourth Proportional to 34,588.80, 51,900.16 and 12,403.92

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Solution

The fourth proportional to 34,588.80, 51,900.16 and 12,403.92 is: 18,611.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,588.80 : 51,900.16 = 12,403.92 : x
  2. Step 2: Convert to fraction form
    34,588.80/51,900.16 = 12,403.92/x
  3. Step 3: Cross multiply
    34,588.80x = 51,900.16 × 12,403.92
  4. Step 4: Simplify right side
    34,588.80x = 643,765,432.63
  5. Step 5: Solve for x
    x = 643,765,432.63/34,588.80
  6. Step 6: Final answer
    x = 18,611.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.