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Finding the Fourth Proportional to 51,774.70, 77,662.11 and 15,751.45

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Solution

The fourth proportional to 51,774.70, 77,662.11 and 15,751.45 is: 23,627.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,774.70 : 77,662.11 = 15,751.45 : x
  2. Step 2: Convert to fraction form
    51,774.70/77,662.11 = 15,751.45/x
  3. Step 3: Cross multiply
    51,774.70x = 77,662.11 × 15,751.45
  4. Step 4: Simplify right side
    51,774.70x = 1,223,290,842.56
  5. Step 5: Solve for x
    x = 1,223,290,842.56/51,774.70
  6. Step 6: Final answer
    x = 23,627.19

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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.