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Finding the Fourth Proportional to 58,569.74, 87,874.05 and 19,128.14

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Solution

The fourth proportional to 58,569.74, 87,874.05 and 19,128.14 is: 28,698.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,569.74 : 87,874.05 = 19,128.14 : x
  2. Step 2: Convert to fraction form
    58,569.74/87,874.05 = 19,128.14/x
  3. Step 3: Cross multiply
    58,569.74x = 87,874.05 × 19,128.14
  4. Step 4: Simplify right side
    58,569.74x = 1,680,867,130.77
  5. Step 5: Solve for x
    x = 1,680,867,130.77/58,569.74
  6. Step 6: Final answer
    x = 28,698.56

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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.