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Finding the Fourth Proportional to 5,411.76, 7,468.24 and 2,927.76

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Solution

The fourth proportional to 5,411.76, 7,468.24 and 2,927.76 is: 4,040.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.76 : 7,468.24 = 2,927.76 : x
  2. Step 2: Convert to fraction form
    5,411.76/7,468.24 = 2,927.76/x
  3. Step 3: Cross multiply
    5,411.76x = 7,468.24 × 2,927.76
  4. Step 4: Simplify right side
    5,411.76x = 21,865,214.34
  5. Step 5: Solve for x
    x = 21,865,214.34/5,411.76
  6. Step 6: Final answer
    x = 4,040.31

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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.