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Finding the Fourth Proportional to 25,437.84, 38,156.17 and 6,719.19

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Solution

The fourth proportional to 25,437.84, 38,156.17 and 6,719.19 is: 10,078.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,437.84 : 38,156.17 = 6,719.19 : x
  2. Step 2: Convert to fraction form
    25,437.84/38,156.17 = 6,719.19/x
  3. Step 3: Cross multiply
    25,437.84x = 38,156.17 × 6,719.19
  4. Step 4: Simplify right side
    25,437.84x = 256,378,555.90
  5. Step 5: Solve for x
    x = 256,378,555.90/25,437.84
  6. Step 6: Final answer
    x = 10,078.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.