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Finding the Fourth Proportional to 7,920.30, 10,926.48 and 4,562.24

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Solution

The fourth proportional to 7,920.30, 10,926.48 and 4,562.24 is: 6,293.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,920.30 : 10,926.48 = 4,562.24 : x
  2. Step 2: Convert to fraction form
    7,920.30/10,926.48 = 4,562.24/x
  3. Step 3: Cross multiply
    7,920.30x = 10,926.48 × 4,562.24
  4. Step 4: Simplify right side
    7,920.30x = 49,849,224.12
  5. Step 5: Solve for x
    x = 49,849,224.12/7,920.30
  6. Step 6: Final answer
    x = 6,293.86

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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.