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Finding the Fourth Proportional to 53,719.19, 80,578.78 and 16,783.19

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Solution

The fourth proportional to 53,719.19, 80,578.78 and 16,783.19 is: 25,174.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,719.19 : 80,578.78 = 16,783.19 : x
  2. Step 2: Convert to fraction form
    53,719.19/80,578.78 = 16,783.19/x
  3. Step 3: Cross multiply
    53,719.19x = 80,578.78 × 16,783.19
  4. Step 4: Simplify right side
    53,719.19x = 1,352,368,974.71
  5. Step 5: Solve for x
    x = 1,352,368,974.71/53,719.19
  6. Step 6: Final answer
    x = 25,174.78

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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.