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Finding the Fourth Proportional to 61,477.28, 84,840.60 and 35,986.16

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Solution

The fourth proportional to 61,477.28, 84,840.60 and 35,986.16 is: 49,662.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,477.28 : 84,840.60 = 35,986.16 : x
  2. Step 2: Convert to fraction form
    61,477.28/84,840.60 = 35,986.16/x
  3. Step 3: Cross multiply
    61,477.28x = 84,840.60 × 35,986.16
  4. Step 4: Simplify right side
    61,477.28x = 3,053,087,406.10
  5. Step 5: Solve for x
    x = 3,053,087,406.10/61,477.28
  6. Step 6: Final answer
    x = 49,662.04

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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.