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Finding the Fourth Proportional to 33,707.60, 50,561.40 and 21,957.20

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Solution

The fourth proportional to 33,707.60, 50,561.40 and 21,957.20 is: 32,935.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,707.60 : 50,561.40 = 21,957.20 : x
  2. Step 2: Convert to fraction form
    33,707.60/50,561.40 = 21,957.20/x
  3. Step 3: Cross multiply
    33,707.60x = 50,561.40 × 21,957.20
  4. Step 4: Simplify right side
    33,707.60x = 1,110,186,772.08
  5. Step 5: Solve for x
    x = 1,110,186,772.08/33,707.60
  6. Step 6: Final answer
    x = 32,935.80

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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.