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Finding the Fourth Proportional to 7,672.10, 11,509.83 and 4,554.95

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Solution

The fourth proportional to 7,672.10, 11,509.83 and 4,554.95 is: 6,833.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,672.10 : 11,509.83 = 4,554.95 : x
  2. Step 2: Convert to fraction form
    7,672.10/11,509.83 = 4,554.95/x
  3. Step 3: Cross multiply
    7,672.10x = 11,509.83 × 4,554.95
  4. Step 4: Simplify right side
    7,672.10x = 52,426,642.61
  5. Step 5: Solve for x
    x = 52,426,642.61/7,672.10
  6. Step 6: Final answer
    x = 6,833.42

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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.