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Finding the Fourth Proportional to 34,773.51, 47,987.45 and 18,858

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Solution

The fourth proportional to 34,773.51, 47,987.45 and 18,858 is: 26,024.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,773.51 : 47,987.45 = 18,858 : x
  2. Step 2: Convert to fraction form
    34,773.51/47,987.45 = 18,858/x
  3. Step 3: Cross multiply
    34,773.51x = 47,987.45 × 18,858
  4. Step 4: Simplify right side
    34,773.51x = 904,947,237.81
  5. Step 5: Solve for x
    x = 904,947,237.81/34,773.51
  6. Step 6: Final answer
    x = 26,024.04

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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.