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Finding the Fourth Proportional to 8,980.51, 13,471.30 and 3,784.63

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Solution

The fourth proportional to 8,980.51, 13,471.30 and 3,784.63 is: 5,677.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,980.51 : 13,471.30 = 3,784.63 : x
  2. Step 2: Convert to fraction form
    8,980.51/13,471.30 = 3,784.63/x
  3. Step 3: Cross multiply
    8,980.51x = 13,471.30 × 3,784.63
  4. Step 4: Simplify right side
    8,980.51x = 50,983,818.76
  5. Step 5: Solve for x
    x = 50,983,818.76/8,980.51
  6. Step 6: Final answer
    x = 5,677.17

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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.