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Finding the Fourth Proportional to 13,782.67, 19,019.95 and 7,495.04

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Solution

The fourth proportional to 13,782.67, 19,019.95 and 7,495.04 is: 10,343.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,782.67 : 19,019.95 = 7,495.04 : x
  2. Step 2: Convert to fraction form
    13,782.67/19,019.95 = 7,495.04/x
  3. Step 3: Cross multiply
    13,782.67x = 19,019.95 × 7,495.04
  4. Step 4: Simplify right side
    13,782.67x = 142,555,286.05
  5. Step 5: Solve for x
    x = 142,555,286.05/13,782.67
  6. Step 6: Final answer
    x = 10,343.08

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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.