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Finding the Fourth Proportional to 8,673.77, 13,009.18 and 3,126.01

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Solution

The fourth proportional to 8,673.77, 13,009.18 and 3,126.01 is: 4,688.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.77 : 13,009.18 = 3,126.01 : x
  2. Step 2: Convert to fraction form
    8,673.77/13,009.18 = 3,126.01/x
  3. Step 3: Cross multiply
    8,673.77x = 13,009.18 × 3,126.01
  4. Step 4: Simplify right side
    8,673.77x = 40,666,811.14
  5. Step 5: Solve for x
    x = 40,666,811.14/8,673.77
  6. Step 6: Final answer
    x = 4,688.48

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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.