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Finding the Fourth Proportional to 51,242.59, 70,714.87 and 28,583.05

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Solution

The fourth proportional to 51,242.59, 70,714.87 and 28,583.05 is: 39,444.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,242.59 : 70,714.87 = 28,583.05 : x
  2. Step 2: Convert to fraction form
    51,242.59/70,714.87 = 28,583.05/x
  3. Step 3: Cross multiply
    51,242.59x = 70,714.87 × 28,583.05
  4. Step 4: Simplify right side
    51,242.59x = 2,021,246,664.95
  5. Step 5: Solve for x
    x = 2,021,246,664.95/51,242.59
  6. Step 6: Final answer
    x = 39,444.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.