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Finding the Fourth Proportional to 35,509.92, 53,251.04 and 13,311.19

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Solution

The fourth proportional to 35,509.92, 53,251.04 and 13,311.19 is: 19,961.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,509.92 : 53,251.04 = 13,311.19 : x
  2. Step 2: Convert to fraction form
    35,509.92/53,251.04 = 13,311.19/x
  3. Step 3: Cross multiply
    35,509.92x = 53,251.04 × 13,311.19
  4. Step 4: Simplify right side
    35,509.92x = 708,834,611.29
  5. Step 5: Solve for x
    x = 708,834,611.29/35,509.92
  6. Step 6: Final answer
    x = 19,961.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.