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Finding the Fourth Proportional to 7,553.94, 10,421.10 and 4,408.71

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Solution

The fourth proportional to 7,553.94, 10,421.10 and 4,408.71 is: 6,082.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,553.94 : 10,421.10 = 4,408.71 : x
  2. Step 2: Convert to fraction form
    7,553.94/10,421.10 = 4,408.71/x
  3. Step 3: Cross multiply
    7,553.94x = 10,421.10 × 4,408.71
  4. Step 4: Simplify right side
    7,553.94x = 45,943,607.78
  5. Step 5: Solve for x
    x = 45,943,607.78/7,553.94
  6. Step 6: Final answer
    x = 6,082.07

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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.