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Finding the Fourth Proportional to 30,437.84, 45,671.24 and 21,092.24

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Solution

The fourth proportional to 30,437.84, 45,671.24 and 21,092.24 is: 31,648.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,437.84 : 45,671.24 = 21,092.24 : x
  2. Step 2: Convert to fraction form
    30,437.84/45,671.24 = 21,092.24/x
  3. Step 3: Cross multiply
    30,437.84x = 45,671.24 × 21,092.24
  4. Step 4: Simplify right side
    30,437.84x = 963,308,755.18
  5. Step 5: Solve for x
    x = 963,308,755.18/30,437.84
  6. Step 6: Final answer
    x = 31,648.39

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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.