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Finding the Fourth Proportional to 22,647.92, 31,254.93 and 12,576.53

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Solution

The fourth proportional to 22,647.92, 31,254.93 and 12,576.53 is: 17,356.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,647.92 : 31,254.93 = 12,576.53 : x
  2. Step 2: Convert to fraction form
    22,647.92/31,254.93 = 12,576.53/x
  3. Step 3: Cross multiply
    22,647.92x = 31,254.93 × 12,576.53
  4. Step 4: Simplify right side
    22,647.92x = 393,078,408.52
  5. Step 5: Solve for x
    x = 393,078,408.52/22,647.92
  6. Step 6: Final answer
    x = 17,356.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.