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Finding the Fourth Proportional to 37,699.68, 56,604.72 and 21,092.16

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Solution

The fourth proportional to 37,699.68, 56,604.72 and 21,092.16 is: 31,669.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,699.68 : 56,604.72 = 21,092.16 : x
  2. Step 2: Convert to fraction form
    37,699.68/56,604.72 = 21,092.16/x
  3. Step 3: Cross multiply
    37,699.68x = 56,604.72 × 21,092.16
  4. Step 4: Simplify right side
    37,699.68x = 1,193,915,811.00
  5. Step 5: Solve for x
    x = 1,193,915,811.00/37,699.68
  6. Step 6: Final answer
    x = 31,669.12

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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.