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Finding the Fourth Proportional to 13,805.55, 19,051.11 and 7,517.93

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Solution

The fourth proportional to 13,805.55, 19,051.11 and 7,517.93 is: 10,374.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,805.55 : 19,051.11 = 7,517.93 : x
  2. Step 2: Convert to fraction form
    13,805.55/19,051.11 = 7,517.93/x
  3. Step 3: Cross multiply
    13,805.55x = 19,051.11 × 7,517.93
  4. Step 4: Simplify right side
    13,805.55x = 143,224,816.15
  5. Step 5: Solve for x
    x = 143,224,816.15/13,805.55
  6. Step 6: Final answer
    x = 10,374.44

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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.