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Finding the Fourth Proportional to 8,810.16, 13,215.24 and 2,570.81

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Solution

The fourth proportional to 8,810.16, 13,215.24 and 2,570.81 is: 3,856.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,810.16 : 13,215.24 = 2,570.81 : x
  2. Step 2: Convert to fraction form
    8,810.16/13,215.24 = 2,570.81/x
  3. Step 3: Cross multiply
    8,810.16x = 13,215.24 × 2,570.81
  4. Step 4: Simplify right side
    8,810.16x = 33,973,805.07
  5. Step 5: Solve for x
    x = 33,973,805.07/8,810.16
  6. Step 6: Final answer
    x = 3,856.21

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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.