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Finding the Fourth Proportional to 5,240.94, 7,860.54 and 1,953.16

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Solution

The fourth proportional to 5,240.94, 7,860.54 and 1,953.16 is: 2,929.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.94 : 7,860.54 = 1,953.16 : x
  2. Step 2: Convert to fraction form
    5,240.94/7,860.54 = 1,953.16/x
  3. Step 3: Cross multiply
    5,240.94x = 7,860.54 × 1,953.16
  4. Step 4: Simplify right side
    5,240.94x = 15,352,892.31
  5. Step 5: Solve for x
    x = 15,352,892.31/5,240.94
  6. Step 6: Final answer
    x = 2,929.42

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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.