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Finding the Fourth Proportional to 5,347.12, 8,020.05 and 1,649.02

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Solution

The fourth proportional to 5,347.12, 8,020.05 and 1,649.02 is: 2,473.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,347.12 : 8,020.05 = 1,649.02 : x
  2. Step 2: Convert to fraction form
    5,347.12/8,020.05 = 1,649.02/x
  3. Step 3: Cross multiply
    5,347.12x = 8,020.05 × 1,649.02
  4. Step 4: Simplify right side
    5,347.12x = 13,225,222.85
  5. Step 5: Solve for x
    x = 13,225,222.85/5,347.12
  6. Step 6: Final answer
    x = 2,473.34

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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.