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Finding the Fourth Proportional to 35,641.75, 49,185.62 and 20,737.75

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Solution

The fourth proportional to 35,641.75, 49,185.62 and 20,737.75 is: 28,618.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,641.75 : 49,185.62 = 20,737.75 : x
  2. Step 2: Convert to fraction form
    35,641.75/49,185.62 = 20,737.75/x
  3. Step 3: Cross multiply
    35,641.75x = 49,185.62 × 20,737.75
  4. Step 4: Simplify right side
    35,641.75x = 1,019,999,091.16
  5. Step 5: Solve for x
    x = 1,019,999,091.16/35,641.75
  6. Step 6: Final answer
    x = 28,618.10

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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.