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Finding the Fourth Proportional to 38,037.84, 52,488.84 and 21,900.84

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Solution

The fourth proportional to 38,037.84, 52,488.84 and 21,900.84 is: 30,221.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,037.84 : 52,488.84 = 21,900.84 : x
  2. Step 2: Convert to fraction form
    38,037.84/52,488.84 = 21,900.84/x
  3. Step 3: Cross multiply
    38,037.84x = 52,488.84 × 21,900.84
  4. Step 4: Simplify right side
    38,037.84x = 1,149,549,686.63
  5. Step 5: Solve for x
    x = 1,149,549,686.63/38,037.84
  6. Step 6: Final answer
    x = 30,221.21

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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.