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Finding the Fourth Proportional to 7,649.17, 10,558.49 and 4,821.31

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Solution

The fourth proportional to 7,649.17, 10,558.49 and 4,821.31 is: 6,655.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,649.17 : 10,558.49 = 4,821.31 : x
  2. Step 2: Convert to fraction form
    7,649.17/10,558.49 = 4,821.31/x
  3. Step 3: Cross multiply
    7,649.17x = 10,558.49 × 4,821.31
  4. Step 4: Simplify right side
    7,649.17x = 50,905,683.12
  5. Step 5: Solve for x
    x = 50,905,683.12/7,649.17
  6. Step 6: Final answer
    x = 6,655.06

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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.