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Finding the Fourth Proportional to 25,916.75, 35,718.21 and 19,499.75

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Solution

The fourth proportional to 25,916.75, 35,718.21 and 19,499.75 is: 26,874.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,916.75 : 35,718.21 = 19,499.75 : x
  2. Step 2: Convert to fraction form
    25,916.75/35,718.21 = 19,499.75/x
  3. Step 3: Cross multiply
    25,916.75x = 35,718.21 × 19,499.75
  4. Step 4: Simplify right side
    25,916.75x = 696,496,165.45
  5. Step 5: Solve for x
    x = 696,496,165.45/25,916.75
  6. Step 6: Final answer
    x = 26,874.36

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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.