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Finding the Fourth Proportional to 26,767.80, 36,939.06 and 14,831.10

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Solution

The fourth proportional to 26,767.80, 36,939.06 and 14,831.10 is: 20,466.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,767.80 : 36,939.06 = 14,831.10 : x
  2. Step 2: Convert to fraction form
    26,767.80/36,939.06 = 14,831.10/x
  3. Step 3: Cross multiply
    26,767.80x = 36,939.06 × 14,831.10
  4. Step 4: Simplify right side
    26,767.80x = 547,846,892.77
  5. Step 5: Solve for x
    x = 547,846,892.77/26,767.80
  6. Step 6: Final answer
    x = 20,466.64

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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.