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Finding the Fourth Proportional to 15,771.10, 23,645.85 and 7,455.10

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Solution

The fourth proportional to 15,771.10, 23,645.85 and 7,455.10 is: 11,177.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,771.10 : 23,645.85 = 7,455.10 : x
  2. Step 2: Convert to fraction form
    15,771.10/23,645.85 = 7,455.10/x
  3. Step 3: Cross multiply
    15,771.10x = 23,645.85 × 7,455.10
  4. Step 4: Simplify right side
    15,771.10x = 176,282,176.34
  5. Step 5: Solve for x
    x = 176,282,176.34/15,771.10
  6. Step 6: Final answer
    x = 11,177.54

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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.