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Finding the Fourth Proportional to 15,512.76, 23,093.69 and 15,420.50

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Solution

The fourth proportional to 15,512.76, 23,093.69 and 15,420.50 is: 22,956.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,512.76 : 23,093.69 = 15,420.50 : x
  2. Step 2: Convert to fraction form
    15,512.76/23,093.69 = 15,420.50/x
  3. Step 3: Cross multiply
    15,512.76x = 23,093.69 × 15,420.50
  4. Step 4: Simplify right side
    15,512.76x = 356,116,054.07
  5. Step 5: Solve for x
    x = 356,116,054.07/15,512.76
  6. Step 6: Final answer
    x = 22,956.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.