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Finding the Fourth Proportional to 57,066.40, 85,669.80 and 36,006.40

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Solution

The fourth proportional to 57,066.40, 85,669.80 and 36,006.40 is: 54,053.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,066.40 : 85,669.80 = 36,006.40 : x
  2. Step 2: Convert to fraction form
    57,066.40/85,669.80 = 36,006.40/x
  3. Step 3: Cross multiply
    57,066.40x = 85,669.80 × 36,006.40
  4. Step 4: Simplify right side
    57,066.40x = 3,084,661,086.72
  5. Step 5: Solve for x
    x = 3,084,661,086.72/57,066.40
  6. Step 6: Final answer
    x = 54,053.89

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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.