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Finding the Fourth Proportional to 7,671.69, 11,499.84 and 4,901.49

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Solution

The fourth proportional to 7,671.69, 11,499.84 and 4,901.49 is: 7,347.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,671.69 : 11,499.84 = 4,901.49 : x
  2. Step 2: Convert to fraction form
    7,671.69/11,499.84 = 4,901.49/x
  3. Step 3: Cross multiply
    7,671.69x = 11,499.84 × 4,901.49
  4. Step 4: Simplify right side
    7,671.69x = 56,366,350.76
  5. Step 5: Solve for x
    x = 56,366,350.76/7,671.69
  6. Step 6: Final answer
    x = 7,347.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.