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Finding the Fourth Proportional to 58,103.72, 87,145.08 and 15,978.33

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Solution

The fourth proportional to 58,103.72, 87,145.08 and 15,978.33 is: 23,964.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,103.72 : 87,145.08 = 15,978.33 : x
  2. Step 2: Convert to fraction form
    58,103.72/87,145.08 = 15,978.33/x
  3. Step 3: Cross multiply
    58,103.72x = 87,145.08 × 15,978.33
  4. Step 4: Simplify right side
    58,103.72x = 1,392,432,846.12
  5. Step 5: Solve for x
    x = 1,392,432,846.12/58,103.72
  6. Step 6: Final answer
    x = 23,964.61

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1.5x scale

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.