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Finding the Fourth Proportional to 18,953, 26,155.68 and 10,570.04

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Solution

The fourth proportional to 18,953, 26,155.68 and 10,570.04 is: 14,586.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,953 : 26,155.68 = 10,570.04 : x
  2. Step 2: Convert to fraction form
    18,953/26,155.68 = 10,570.04/x
  3. Step 3: Cross multiply
    18,953x = 26,155.68 × 10,570.04
  4. Step 4: Simplify right side
    18,953x = 276,466,583.83
  5. Step 5: Solve for x
    x = 276,466,583.83/18,953
  6. Step 6: Final answer
    x = 14,586.96

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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.