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Finding the Fourth Proportional to 56,392.30, 77,815.95 and 33,726.70

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Solution

The fourth proportional to 56,392.30, 77,815.95 and 33,726.70 is: 46,539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,392.30 : 77,815.95 = 33,726.70 : x
  2. Step 2: Convert to fraction form
    56,392.30/77,815.95 = 33,726.70/x
  3. Step 3: Cross multiply
    56,392.30x = 77,815.95 × 33,726.70
  4. Step 4: Simplify right side
    56,392.30x = 2,624,475,200.87
  5. Step 5: Solve for x
    x = 2,624,475,200.87/56,392.30
  6. Step 6: Final answer
    x = 46,539.60

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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.