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Finding the Fourth Proportional to 58,872.76, 88,296.75 and 19,420.63

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Solution

The fourth proportional to 58,872.76, 88,296.75 and 19,420.63 is: 29,126.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,872.76 : 88,296.75 = 19,420.63 : x
  2. Step 2: Convert to fraction form
    58,872.76/88,296.75 = 19,420.63/x
  3. Step 3: Cross multiply
    58,872.76x = 88,296.75 × 19,420.63
  4. Step 4: Simplify right side
    58,872.76x = 1,714,778,291.21
  5. Step 5: Solve for x
    x = 1,714,778,291.21/58,872.76
  6. Step 6: Final answer
    x = 29,126.86

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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.