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Finding the Fourth Proportional to 15,048.76, 20,767.46 and 8,334.50

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Solution

The fourth proportional to 15,048.76, 20,767.46 and 8,334.50 is: 11,501.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,048.76 : 20,767.46 = 8,334.50 : x
  2. Step 2: Convert to fraction form
    15,048.76/20,767.46 = 8,334.50/x
  3. Step 3: Cross multiply
    15,048.76x = 20,767.46 × 8,334.50
  4. Step 4: Simplify right side
    15,048.76x = 173,086,395.37
  5. Step 5: Solve for x
    x = 173,086,395.37/15,048.76
  6. Step 6: Final answer
    x = 11,501.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.