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Finding the Fourth Proportional to 7,672.57, 10,585.42 and 5,021.53

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Solution

The fourth proportional to 7,672.57, 10,585.42 and 5,021.53 is: 6,927.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,672.57 : 10,585.42 = 5,021.53 : x
  2. Step 2: Convert to fraction form
    7,672.57/10,585.42 = 5,021.53/x
  3. Step 3: Cross multiply
    7,672.57x = 10,585.42 × 5,021.53
  4. Step 4: Simplify right side
    7,672.57x = 53,155,004.09
  5. Step 5: Solve for x
    x = 53,155,004.09/7,672.57
  6. Step 6: Final answer
    x = 6,927.93

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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.