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Finding the Fourth Proportional to 35,997.60, 53,996.40 and 30,986.40

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Solution

The fourth proportional to 35,997.60, 53,996.40 and 30,986.40 is: 46,479.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,997.60 : 53,996.40 = 30,986.40 : x
  2. Step 2: Convert to fraction form
    35,997.60/53,996.40 = 30,986.40/x
  3. Step 3: Cross multiply
    35,997.60x = 53,996.40 × 30,986.40
  4. Step 4: Simplify right side
    35,997.60x = 1,673,154,048.96
  5. Step 5: Solve for x
    x = 1,673,154,048.96/35,997.60
  6. Step 6: Final answer
    x = 46,479.60

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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.