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Finding the Fourth Proportional to 15,652.92, 21,601.44 and 8,846.40

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Solution

The fourth proportional to 15,652.92, 21,601.44 and 8,846.40 is: 12,208.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,652.92 : 21,601.44 = 8,846.40 : x
  2. Step 2: Convert to fraction form
    15,652.92/21,601.44 = 8,846.40/x
  3. Step 3: Cross multiply
    15,652.92x = 21,601.44 × 8,846.40
  4. Step 4: Simplify right side
    15,652.92x = 191,094,978.82
  5. Step 5: Solve for x
    x = 191,094,978.82/15,652.92
  6. Step 6: Final answer
    x = 12,208.26

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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.