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Finding the Fourth Proportional to 19,707.93, 29,544.08 and 7,219.08

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Solution

The fourth proportional to 19,707.93, 29,544.08 and 7,219.08 is: 10,822.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,707.93 : 29,544.08 = 7,219.08 : x
  2. Step 2: Convert to fraction form
    19,707.93/29,544.08 = 7,219.08/x
  3. Step 3: Cross multiply
    19,707.93x = 29,544.08 × 7,219.08
  4. Step 4: Simplify right side
    19,707.93x = 213,281,040.95
  5. Step 5: Solve for x
    x = 213,281,040.95/19,707.93
  6. Step 6: Final answer
    x = 10,822.09

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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.