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Finding the Fourth Proportional to 10,958.32, 15,103.32 and 7,933.36

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Solution

The fourth proportional to 10,958.32, 15,103.32 and 7,933.36 is: 10,934.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,958.32 : 15,103.32 = 7,933.36 : x
  2. Step 2: Convert to fraction form
    10,958.32/15,103.32 = 7,933.36/x
  3. Step 3: Cross multiply
    10,958.32x = 15,103.32 × 7,933.36
  4. Step 4: Simplify right side
    10,958.32x = 119,820,074.76
  5. Step 5: Solve for x
    x = 119,820,074.76/10,958.32
  6. Step 6: Final answer
    x = 10,934.16

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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.