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Finding the Fourth Proportional to 60,561.50, 90,845.49 and 19,011.74

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Solution

The fourth proportional to 60,561.50, 90,845.49 and 19,011.74 is: 28,518.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,561.50 : 90,845.49 = 19,011.74 : x
  2. Step 2: Convert to fraction form
    60,561.50/90,845.49 = 19,011.74/x
  3. Step 3: Cross multiply
    60,561.50x = 90,845.49 × 19,011.74
  4. Step 4: Simplify right side
    60,561.50x = 1,727,130,836.05
  5. Step 5: Solve for x
    x = 1,727,130,836.05/60,561.50
  6. Step 6: Final answer
    x = 28,518.63

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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.