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Finding the Fourth Proportional to 28,060.52, 42,092.63 and 9,339.80

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Solution

The fourth proportional to 28,060.52, 42,092.63 and 9,339.80 is: 14,010.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,060.52 : 42,092.63 = 9,339.80 : x
  2. Step 2: Convert to fraction form
    28,060.52/42,092.63 = 9,339.80/x
  3. Step 3: Cross multiply
    28,060.52x = 42,092.63 × 9,339.80
  4. Step 4: Simplify right side
    28,060.52x = 393,136,488.51
  5. Step 5: Solve for x
    x = 393,136,488.51/28,060.52
  6. Step 6: Final answer
    x = 14,010.31

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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.