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Finding the Fourth Proportional to 19,224.84, 28,837.53 and 8,130.14

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Solution

The fourth proportional to 19,224.84, 28,837.53 and 8,130.14 is: 12,195.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,224.84 : 28,837.53 = 8,130.14 : x
  2. Step 2: Convert to fraction form
    19,224.84/28,837.53 = 8,130.14/x
  3. Step 3: Cross multiply
    19,224.84x = 28,837.53 × 8,130.14
  4. Step 4: Simplify right side
    19,224.84x = 234,453,011.97
  5. Step 5: Solve for x
    x = 234,453,011.97/19,224.84
  6. Step 6: Final answer
    x = 12,195.32

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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.