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Finding the Fourth Proportional to 58,408.55, 87,611.56 and 16,287.51

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Solution

The fourth proportional to 58,408.55, 87,611.56 and 16,287.51 is: 24,430.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,408.55 : 87,611.56 = 16,287.51 : x
  2. Step 2: Convert to fraction form
    58,408.55/87,611.56 = 16,287.51/x
  3. Step 3: Cross multiply
    58,408.55x = 87,611.56 × 16,287.51
  4. Step 4: Simplify right side
    58,408.55x = 1,426,973,851.43
  5. Step 5: Solve for x
    x = 1,426,973,851.43/58,408.55
  6. Step 6: Final answer
    x = 24,430.91

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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.