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Finding the Fourth Proportional to 58,176.81, 87,265.25 and 18,737.01

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Solution

The fourth proportional to 58,176.81, 87,265.25 and 18,737.01 is: 28,105.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,176.81 : 87,265.25 = 18,737.01 : x
  2. Step 2: Convert to fraction form
    58,176.81/87,265.25 = 18,737.01/x
  3. Step 3: Cross multiply
    58,176.81x = 87,265.25 × 18,737.01
  4. Step 4: Simplify right side
    58,176.81x = 1,635,089,768.22
  5. Step 5: Solve for x
    x = 1,635,089,768.22/58,176.81
  6. Step 6: Final answer
    x = 28,105.52

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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.