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Finding the Fourth Proportional to 15,805.52, 23,698.52 and 7,480.40

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Solution

The fourth proportional to 15,805.52, 23,698.52 and 7,480.40 is: 11,215.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,805.52 : 23,698.52 = 7,480.40 : x
  2. Step 2: Convert to fraction form
    15,805.52/23,698.52 = 7,480.40/x
  3. Step 3: Cross multiply
    15,805.52x = 23,698.52 × 7,480.40
  4. Step 4: Simplify right side
    15,805.52x = 177,274,409.01
  5. Step 5: Solve for x
    x = 177,274,409.01/15,805.52
  6. Step 6: Final answer
    x = 11,215.98

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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.