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Finding the Fourth Proportional to 39,965.60, 59,638.60 and 33,053.60

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Solution

The fourth proportional to 39,965.60, 59,638.60 and 33,053.60 is: 49,324.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,965.60 : 59,638.60 = 33,053.60 : x
  2. Step 2: Convert to fraction form
    39,965.60/59,638.60 = 33,053.60/x
  3. Step 3: Cross multiply
    39,965.60x = 59,638.60 × 33,053.60
  4. Step 4: Simplify right side
    39,965.60x = 1,971,270,428.96
  5. Step 5: Solve for x
    x = 1,971,270,428.96/39,965.60
  6. Step 6: Final answer
    x = 49,324.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.