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Finding the Fourth Proportional to 8,875.63, 13,316.57 and 3,944.81

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Solution

The fourth proportional to 8,875.63, 13,316.57 and 3,944.81 is: 5,918.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,875.63 : 13,316.57 = 3,944.81 : x
  2. Step 2: Convert to fraction form
    8,875.63/13,316.57 = 3,944.81/x
  3. Step 3: Cross multiply
    8,875.63x = 13,316.57 × 3,944.81
  4. Step 4: Simplify right side
    8,875.63x = 52,531,338.50
  5. Step 5: Solve for x
    x = 52,531,338.50/8,875.63
  6. Step 6: Final answer
    x = 5,918.60

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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.