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Finding the Fourth Proportional to 7,725.91, 10,659.24 and 4,368.39

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Solution

The fourth proportional to 7,725.91, 10,659.24 and 4,368.39 is: 6,026.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,725.91 : 10,659.24 = 4,368.39 : x
  2. Step 2: Convert to fraction form
    7,725.91/10,659.24 = 4,368.39/x
  3. Step 3: Cross multiply
    7,725.91x = 10,659.24 × 4,368.39
  4. Step 4: Simplify right side
    7,725.91x = 46,563,717.42
  5. Step 5: Solve for x
    x = 46,563,717.42/7,725.91
  6. Step 6: Final answer
    x = 6,026.96

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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.