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Finding the Fourth Proportional to 28,752.98, 43,133.72 and 14,720.94

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Solution

The fourth proportional to 28,752.98, 43,133.72 and 14,720.94 is: 22,083.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,752.98 : 43,133.72 = 14,720.94 : x
  2. Step 2: Convert to fraction form
    28,752.98/43,133.72 = 14,720.94/x
  3. Step 3: Cross multiply
    28,752.98x = 43,133.72 × 14,720.94
  4. Step 4: Simplify right side
    28,752.98x = 634,968,830.49
  5. Step 5: Solve for x
    x = 634,968,830.49/28,752.98
  6. Step 6: Final answer
    x = 22,083.59

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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.