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Finding the Fourth Proportional to 34,761.66, 47,973.86 and 19,657.50

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Solution

The fourth proportional to 34,761.66, 47,973.86 and 19,657.50 is: 27,128.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,761.66 : 47,973.86 = 19,657.50 : x
  2. Step 2: Convert to fraction form
    34,761.66/47,973.86 = 19,657.50/x
  3. Step 3: Cross multiply
    34,761.66x = 47,973.86 × 19,657.50
  4. Step 4: Simplify right side
    34,761.66x = 943,046,152.95
  5. Step 5: Solve for x
    x = 943,046,152.95/34,761.66
  6. Step 6: Final answer
    x = 27,128.92

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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.