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Finding the Fourth Proportional to 6,909.58, 9,535.24 and 3,925.44

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Solution

The fourth proportional to 6,909.58, 9,535.24 and 3,925.44 is: 5,417.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,909.58 : 9,535.24 = 3,925.44 : x
  2. Step 2: Convert to fraction form
    6,909.58/9,535.24 = 3,925.44/x
  3. Step 3: Cross multiply
    6,909.58x = 9,535.24 × 3,925.44
  4. Step 4: Simplify right side
    6,909.58x = 37,430,012.51
  5. Step 5: Solve for x
    x = 37,430,012.51/6,909.58
  6. Step 6: Final answer
    x = 5,417.12

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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.