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Finding the Fourth Proportional to 18,967.31, 26,175.71 and 10,583.81

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Solution

The fourth proportional to 18,967.31, 26,175.71 and 10,583.81 is: 14,606.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,967.31 : 26,175.71 = 10,583.81 : x
  2. Step 2: Convert to fraction form
    18,967.31/26,175.71 = 10,583.81/x
  3. Step 3: Cross multiply
    18,967.31x = 26,175.71 × 10,583.81
  4. Step 4: Simplify right side
    18,967.31x = 277,038,833.15
  5. Step 5: Solve for x
    x = 277,038,833.15/18,967.31
  6. Step 6: Final answer
    x = 14,606.12

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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.