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Finding the Fourth Proportional to 58,026.94, 87,079.32 and 21,090.94

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Solution

The fourth proportional to 58,026.94, 87,079.32 and 21,090.94 is: 31,650.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,026.94 : 87,079.32 = 21,090.94 : x
  2. Step 2: Convert to fraction form
    58,026.94/87,079.32 = 21,090.94/x
  3. Step 3: Cross multiply
    58,026.94x = 87,079.32 × 21,090.94
  4. Step 4: Simplify right side
    58,026.94x = 1,836,584,495.66
  5. Step 5: Solve for x
    x = 1,836,584,495.66/58,026.94
  6. Step 6: Final answer
    x = 31,650.55

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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.