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Finding the Fourth Proportional to 11,753.01, 16,220.21 and 6,448.86

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Solution

The fourth proportional to 11,753.01, 16,220.21 and 6,448.86 is: 8,900.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,753.01 : 16,220.21 = 6,448.86 : x
  2. Step 2: Convert to fraction form
    11,753.01/16,220.21 = 6,448.86/x
  3. Step 3: Cross multiply
    11,753.01x = 16,220.21 × 6,448.86
  4. Step 4: Simplify right side
    11,753.01x = 104,601,831.22
  5. Step 5: Solve for x
    x = 104,601,831.22/11,753.01
  6. Step 6: Final answer
    x = 8,900.00

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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.