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Finding the Fourth Proportional to 58,032.25, 86,936.28 and 42,807.99

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Solution

The fourth proportional to 58,032.25, 86,936.28 and 42,807.99 is: 64,129.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,032.25 : 86,936.28 = 42,807.99 : x
  2. Step 2: Convert to fraction form
    58,032.25/86,936.28 = 42,807.99/x
  3. Step 3: Cross multiply
    58,032.25x = 86,936.28 × 42,807.99
  4. Step 4: Simplify right side
    58,032.25x = 3,721,567,404.88
  5. Step 5: Solve for x
    x = 3,721,567,404.88/58,032.25
  6. Step 6: Final answer
    x = 64,129.30

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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.