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Finding the Fourth Proportional to 61,489.28, 84,857.16 and 35,998.16

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Solution

The fourth proportional to 61,489.28, 84,857.16 and 35,998.16 is: 49,678.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,489.28 : 84,857.16 = 35,998.16 : x
  2. Step 2: Convert to fraction form
    61,489.28/84,857.16 = 35,998.16/x
  3. Step 3: Cross multiply
    61,489.28x = 84,857.16 × 35,998.16
  4. Step 4: Simplify right side
    61,489.28x = 3,054,701,622.83
  5. Step 5: Solve for x
    x = 3,054,701,622.83/61,489.28
  6. Step 6: Final answer
    x = 49,678.60

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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.