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Finding the Fourth Proportional to 5,368.28, 8,053.20 and 1,905.24

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Solution

The fourth proportional to 5,368.28, 8,053.20 and 1,905.24 is: 2,858.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,368.28 : 8,053.20 = 1,905.24 : x
  2. Step 2: Convert to fraction form
    5,368.28/8,053.20 = 1,905.24/x
  3. Step 3: Cross multiply
    5,368.28x = 8,053.20 × 1,905.24
  4. Step 4: Simplify right side
    5,368.28x = 15,343,278.77
  5. Step 5: Solve for x
    x = 15,343,278.77/5,368.28
  6. Step 6: Final answer
    x = 2,858.14

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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.