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Finding the Fourth Proportional to 58,479.86, 87,725.28 and 19,026.38

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Solution

The fourth proportional to 58,479.86, 87,725.28 and 19,026.38 is: 28,541.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,479.86 : 87,725.28 = 19,026.38 : x
  2. Step 2: Convert to fraction form
    58,479.86/87,725.28 = 19,026.38/x
  3. Step 3: Cross multiply
    58,479.86x = 87,725.28 × 19,026.38
  4. Step 4: Simplify right side
    58,479.86x = 1,669,094,512.89
  5. Step 5: Solve for x
    x = 1,669,094,512.89/58,479.86
  6. Step 6: Final answer
    x = 28,541.36

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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.