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Finding the Fourth Proportional to 5,553.35, 7,662.35 and 3,315.95

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Solution

The fourth proportional to 5,553.35, 7,662.35 and 3,315.95 is: 4,575.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,553.35 : 7,662.35 = 3,315.95 : x
  2. Step 2: Convert to fraction form
    5,553.35/7,662.35 = 3,315.95/x
  3. Step 3: Cross multiply
    5,553.35x = 7,662.35 × 3,315.95
  4. Step 4: Simplify right side
    5,553.35x = 25,407,931.17
  5. Step 5: Solve for x
    x = 25,407,931.17/5,553.35
  6. Step 6: Final answer
    x = 4,575.25

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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.