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Finding the Fourth Proportional to 25,368.22, 35,022.22 and 15,299.22

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Solution

The fourth proportional to 25,368.22, 35,022.22 and 15,299.22 is: 21,121.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,368.22 : 35,022.22 = 15,299.22 : x
  2. Step 2: Convert to fraction form
    25,368.22/35,022.22 = 15,299.22/x
  3. Step 3: Cross multiply
    25,368.22x = 35,022.22 × 15,299.22
  4. Step 4: Simplify right side
    25,368.22x = 535,812,648.67
  5. Step 5: Solve for x
    x = 535,812,648.67/25,368.22
  6. Step 6: Final answer
    x = 21,121.41

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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.