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Finding the Fourth Proportional to 14,855.80, 22,265.70 and 8,603.80

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Solution

The fourth proportional to 14,855.80, 22,265.70 and 8,603.80 is: 12,895.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,855.80 : 22,265.70 = 8,603.80 : x
  2. Step 2: Convert to fraction form
    14,855.80/22,265.70 = 8,603.80/x
  3. Step 3: Cross multiply
    14,855.80x = 22,265.70 × 8,603.80
  4. Step 4: Simplify right side
    14,855.80x = 191,569,629.66
  5. Step 5: Solve for x
    x = 191,569,629.66/14,855.80
  6. Step 6: Final answer
    x = 12,895.28

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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.