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Finding the Fourth Proportional to 12,773.70, 19,124.10 and 11,315.70

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Solution

The fourth proportional to 12,773.70, 19,124.10 and 11,315.70 is: 16,941.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,773.70 : 19,124.10 = 11,315.70 : x
  2. Step 2: Convert to fraction form
    12,773.70/19,124.10 = 11,315.70/x
  3. Step 3: Cross multiply
    12,773.70x = 19,124.10 × 11,315.70
  4. Step 4: Simplify right side
    12,773.70x = 216,402,578.37
  5. Step 5: Solve for x
    x = 216,402,578.37/12,773.70
  6. Step 6: Final answer
    x = 16,941.26

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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.