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Finding the Fourth Proportional to 46,773.60, 70,200.20 and 18,713.28

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Solution

The fourth proportional to 46,773.60, 70,200.20 and 18,713.28 is: 28,085.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,773.60 : 70,200.20 = 18,713.28 : x
  2. Step 2: Convert to fraction form
    46,773.60/70,200.20 = 18,713.28/x
  3. Step 3: Cross multiply
    46,773.60x = 70,200.20 × 18,713.28
  4. Step 4: Simplify right side
    46,773.60x = 1,313,675,998.66
  5. Step 5: Solve for x
    x = 1,313,675,998.66/46,773.60
  6. Step 6: Final answer
    x = 28,085.84

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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.