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Finding the Fourth Proportional to 35,254.40, 48,622.80 and 30,996.40

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Solution

The fourth proportional to 35,254.40, 48,622.80 and 30,996.40 is: 42,750.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,254.40 : 48,622.80 = 30,996.40 : x
  2. Step 2: Convert to fraction form
    35,254.40/48,622.80 = 30,996.40/x
  3. Step 3: Cross multiply
    35,254.40x = 48,622.80 × 30,996.40
  4. Step 4: Simplify right side
    35,254.40x = 1,507,131,757.92
  5. Step 5: Solve for x
    x = 1,507,131,757.92/35,254.40
  6. Step 6: Final answer
    x = 42,750.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.