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Finding the Fourth Proportional to 7,575.54, 10,454.03 and 4,218.22

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Solution

The fourth proportional to 7,575.54, 10,454.03 and 4,218.22 is: 5,821.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,575.54 : 10,454.03 = 4,218.22 : x
  2. Step 2: Convert to fraction form
    7,575.54/10,454.03 = 4,218.22/x
  3. Step 3: Cross multiply
    7,575.54x = 10,454.03 × 4,218.22
  4. Step 4: Simplify right side
    7,575.54x = 44,097,377.34
  5. Step 5: Solve for x
    x = 44,097,377.34/7,575.54
  6. Step 6: Final answer
    x = 5,821.02

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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.