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Finding the Fourth Proportional to 55,857.94, 83,774.60 and 35,807.20

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Solution

The fourth proportional to 55,857.94, 83,774.60 and 35,807.20 is: 53,702.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,857.94 : 83,774.60 = 35,807.20 : x
  2. Step 2: Convert to fraction form
    55,857.94/83,774.60 = 35,807.20/x
  3. Step 3: Cross multiply
    55,857.94x = 83,774.60 × 35,807.20
  4. Step 4: Simplify right side
    55,857.94x = 2,999,733,857.12
  5. Step 5: Solve for x
    x = 2,999,733,857.12/55,857.94
  6. Step 6: Final answer
    x = 53,702.91

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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.