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Finding the Fourth Proportional to 37,872.09, 56,808.04 and 11,220.16

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Solution

The fourth proportional to 37,872.09, 56,808.04 and 11,220.16 is: 16,830.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,872.09 : 56,808.04 = 11,220.16 : x
  2. Step 2: Convert to fraction form
    37,872.09/56,808.04 = 11,220.16/x
  3. Step 3: Cross multiply
    37,872.09x = 56,808.04 × 11,220.16
  4. Step 4: Simplify right side
    37,872.09x = 637,395,507.56
  5. Step 5: Solve for x
    x = 637,395,507.56/37,872.09
  6. Step 6: Final answer
    x = 16,830.22

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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.