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Finding the Fourth Proportional to 22,271.99, 30,735.60 and 12,713.17

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Solution

The fourth proportional to 22,271.99, 30,735.60 and 12,713.17 is: 17,544.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,271.99 : 30,735.60 = 12,713.17 : x
  2. Step 2: Convert to fraction form
    22,271.99/30,735.60 = 12,713.17/x
  3. Step 3: Cross multiply
    22,271.99x = 30,735.60 × 12,713.17
  4. Step 4: Simplify right side
    22,271.99x = 390,746,907.85
  5. Step 5: Solve for x
    x = 390,746,907.85/22,271.99
  6. Step 6: Final answer
    x = 17,544.32

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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.