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Finding the Fourth Proportional to 8,615.02, 12,922.26 and 2,459.02

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Solution

The fourth proportional to 8,615.02, 12,922.26 and 2,459.02 is: 3,688.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,615.02 : 12,922.26 = 2,459.02 : x
  2. Step 2: Convert to fraction form
    8,615.02/12,922.26 = 2,459.02/x
  3. Step 3: Cross multiply
    8,615.02x = 12,922.26 × 2,459.02
  4. Step 4: Simplify right side
    8,615.02x = 31,776,095.79
  5. Step 5: Solve for x
    x = 31,776,095.79/8,615.02
  6. Step 6: Final answer
    x = 3,688.45

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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.