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Finding the Fourth Proportional to 60,573.72, 90,871.92 and 19,011

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Solution

The fourth proportional to 60,573.72, 90,871.92 and 19,011 is: 28,520.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,573.72 : 90,871.92 = 19,011 : x
  2. Step 2: Convert to fraction form
    60,573.72/90,871.92 = 19,011/x
  3. Step 3: Cross multiply
    60,573.72x = 90,871.92 × 19,011
  4. Step 4: Simplify right side
    60,573.72x = 1,727,566,071.12
  5. Step 5: Solve for x
    x = 1,727,566,071.12/60,573.72
  6. Step 6: Final answer
    x = 28,520.06

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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.