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Finding the Fourth Proportional to 35,509.20, 53,245.20 and 10,545.84

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Solution

The fourth proportional to 35,509.20, 53,245.20 and 10,545.84 is: 15,813.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,509.20 : 53,245.20 = 10,545.84 : x
  2. Step 2: Convert to fraction form
    35,509.20/53,245.20 = 10,545.84/x
  3. Step 3: Cross multiply
    35,509.20x = 53,245.20 × 10,545.84
  4. Step 4: Simplify right side
    35,509.20x = 561,515,359.97
  5. Step 5: Solve for x
    x = 561,515,359.97/35,509.20
  6. Step 6: Final answer
    x = 15,813.24

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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.