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Finding the Fourth Proportional to 18,881.64, 26,018.27 and 14,606.74

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Solution

The fourth proportional to 18,881.64, 26,018.27 and 14,606.74 is: 20,127.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,881.64 : 26,018.27 = 14,606.74 : x
  2. Step 2: Convert to fraction form
    18,881.64/26,018.27 = 14,606.74/x
  3. Step 3: Cross multiply
    18,881.64x = 26,018.27 × 14,606.74
  4. Step 4: Simplify right side
    18,881.64x = 380,042,105.14
  5. Step 5: Solve for x
    x = 380,042,105.14/18,881.64
  6. Step 6: Final answer
    x = 20,127.60

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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.