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Finding the Fourth Proportional to 7,603, 10,490.88 and 4,245.76

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Solution

The fourth proportional to 7,603, 10,490.88 and 4,245.76 is: 5,858.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,603 : 10,490.88 = 4,245.76 : x
  2. Step 2: Convert to fraction form
    7,603/10,490.88 = 4,245.76/x
  3. Step 3: Cross multiply
    7,603x = 10,490.88 × 4,245.76
  4. Step 4: Simplify right side
    7,603x = 44,541,758.67
  5. Step 5: Solve for x
    x = 44,541,758.67/7,603
  6. Step 6: Final answer
    x = 5,858.45

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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.