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Finding the Fourth Proportional to 10,712.44, 16,070.48 and 4,869.51

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Solution

The fourth proportional to 10,712.44, 16,070.48 and 4,869.51 is: 7,305.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,712.44 : 16,070.48 = 4,869.51 : x
  2. Step 2: Convert to fraction form
    10,712.44/16,070.48 = 4,869.51/x
  3. Step 3: Cross multiply
    10,712.44x = 16,070.48 × 4,869.51
  4. Step 4: Simplify right side
    10,712.44x = 78,255,363.06
  5. Step 5: Solve for x
    x = 78,255,363.06/10,712.44
  6. Step 6: Final answer
    x = 7,305.09

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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.