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Finding the Fourth Proportional to 61,301.96, 91,807.63 and 39,047.87

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Solution

The fourth proportional to 61,301.96, 91,807.63 and 39,047.87 is: 58,479.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,301.96 : 91,807.63 = 39,047.87 : x
  2. Step 2: Convert to fraction form
    61,301.96/91,807.63 = 39,047.87/x
  3. Step 3: Cross multiply
    61,301.96x = 91,807.63 × 39,047.87
  4. Step 4: Simplify right side
    61,301.96x = 3,584,892,533.15
  5. Step 5: Solve for x
    x = 3,584,892,533.15/61,301.96
  6. Step 6: Final answer
    x = 58,479.24

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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.