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Finding the Fourth Proportional to 5,411.76, 8,116.56 and 1,901.10

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Solution

The fourth proportional to 5,411.76, 8,116.56 and 1,901.10 is: 2,851.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.76 : 8,116.56 = 1,901.10 : x
  2. Step 2: Convert to fraction form
    5,411.76/8,116.56 = 1,901.10/x
  3. Step 3: Cross multiply
    5,411.76x = 8,116.56 × 1,901.10
  4. Step 4: Simplify right side
    5,411.76x = 15,430,392.22
  5. Step 5: Solve for x
    x = 15,430,392.22/5,411.76
  6. Step 6: Final answer
    x = 2,851.27

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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.