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Finding the Fourth Proportional to 58,291.84, 87,427.20 and 16,728.96

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Solution

The fourth proportional to 58,291.84, 87,427.20 and 16,728.96 is: 25,090.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,291.84 : 87,427.20 = 16,728.96 : x
  2. Step 2: Convert to fraction form
    58,291.84/87,427.20 = 16,728.96/x
  3. Step 3: Cross multiply
    58,291.84x = 87,427.20 × 16,728.96
  4. Step 4: Simplify right side
    58,291.84x = 1,462,566,131.71
  5. Step 5: Solve for x
    x = 1,462,566,131.71/58,291.84
  6. Step 6: Final answer
    x = 25,090.41

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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.