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Finding the Fourth Proportional to 14,843.79, 20,484.90 and 9,545.85

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Solution

The fourth proportional to 14,843.79, 20,484.90 and 9,545.85 is: 13,173.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,843.79 : 20,484.90 = 9,545.85 : x
  2. Step 2: Convert to fraction form
    14,843.79/20,484.90 = 9,545.85/x
  3. Step 3: Cross multiply
    14,843.79x = 20,484.90 × 9,545.85
  4. Step 4: Simplify right side
    14,843.79x = 195,545,782.67
  5. Step 5: Solve for x
    x = 195,545,782.67/14,843.79
  6. Step 6: Final answer
    x = 13,173.58

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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.