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Finding the Fourth Proportional to 15,751.96, 23,622.06 and 5,220.04

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Solution

The fourth proportional to 15,751.96, 23,622.06 and 5,220.04 is: 7,828.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,751.96 : 23,622.06 = 5,220.04 : x
  2. Step 2: Convert to fraction form
    15,751.96/23,622.06 = 5,220.04/x
  3. Step 3: Cross multiply
    15,751.96x = 23,622.06 × 5,220.04
  4. Step 4: Simplify right side
    15,751.96x = 123,308,098.08
  5. Step 5: Solve for x
    x = 123,308,098.08/15,751.96
  6. Step 6: Final answer
    x = 7,828.11

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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.