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Finding the Fourth Proportional to 35,349.96, 48,770.78 and 21,916.38

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Solution

The fourth proportional to 35,349.96, 48,770.78 and 21,916.38 is: 30,237.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,349.96 : 48,770.78 = 21,916.38 : x
  2. Step 2: Convert to fraction form
    35,349.96/48,770.78 = 21,916.38/x
  3. Step 3: Cross multiply
    35,349.96x = 48,770.78 × 21,916.38
  4. Step 4: Simplify right side
    35,349.96x = 1,068,878,947.38
  5. Step 5: Solve for x
    x = 1,068,878,947.38/35,349.96
  6. Step 6: Final answer
    x = 30,237.06

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1.5x scale

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.