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Finding the Fourth Proportional to 20,048.58, 30,056.48 and 7,561.50

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Solution

The fourth proportional to 20,048.58, 30,056.48 and 7,561.50 is: 11,336.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,048.58 : 30,056.48 = 7,561.50 : x
  2. Step 2: Convert to fraction form
    20,048.58/30,056.48 = 7,561.50/x
  3. Step 3: Cross multiply
    20,048.58x = 30,056.48 × 7,561.50
  4. Step 4: Simplify right side
    20,048.58x = 227,272,073.52
  5. Step 5: Solve for x
    x = 227,272,073.52/20,048.58
  6. Step 6: Final answer
    x = 11,336.07

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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.