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Finding the Fourth Proportional to 3,574.12, 5,361.01 and 977.05

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Solution

The fourth proportional to 3,574.12, 5,361.01 and 977.05 is: 1,465.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,574.12 : 5,361.01 = 977.05 : x
  2. Step 2: Convert to fraction form
    3,574.12/5,361.01 = 977.05/x
  3. Step 3: Cross multiply
    3,574.12x = 5,361.01 × 977.05
  4. Step 4: Simplify right side
    3,574.12x = 5,237,974.82
  5. Step 5: Solve for x
    x = 5,237,974.82/3,574.12
  6. Step 6: Final answer
    x = 1,465.53

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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.