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Finding the Fourth Proportional to 8,495.76, 12,742.74 and 5,203.11

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Solution

The fourth proportional to 8,495.76, 12,742.74 and 5,203.11 is: 7,804.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,495.76 : 12,742.74 = 5,203.11 : x
  2. Step 2: Convert to fraction form
    8,495.76/12,742.74 = 5,203.11/x
  3. Step 3: Cross multiply
    8,495.76x = 12,742.74 × 5,203.11
  4. Step 4: Simplify right side
    8,495.76x = 66,301,877.92
  5. Step 5: Solve for x
    x = 66,301,877.92/8,495.76
  6. Step 6: Final answer
    x = 7,804.11

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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.