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Finding the Fourth Proportional to 7,503.88, 10,355.35 and 4,191.88

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Solution

The fourth proportional to 7,503.88, 10,355.35 and 4,191.88 is: 5,784.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,503.88 : 10,355.35 = 4,191.88 : x
  2. Step 2: Convert to fraction form
    7,503.88/10,355.35 = 4,191.88/x
  3. Step 3: Cross multiply
    7,503.88x = 10,355.35 × 4,191.88
  4. Step 4: Simplify right side
    7,503.88x = 43,408,384.56
  5. Step 5: Solve for x
    x = 43,408,384.56/7,503.88
  6. Step 6: Final answer
    x = 5,784.79

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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.