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Finding the Fourth Proportional to 3,574.94, 5,362.24 and 977.88

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Solution

The fourth proportional to 3,574.94, 5,362.24 and 977.88 is: 1,466.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,574.94 : 5,362.24 = 977.88 : x
  2. Step 2: Convert to fraction form
    3,574.94/5,362.24 = 977.88/x
  3. Step 3: Cross multiply
    3,574.94x = 5,362.24 × 977.88
  4. Step 4: Simplify right side
    3,574.94x = 5,243,627.25
  5. Step 5: Solve for x
    x = 5,243,627.25/3,574.94
  6. Step 6: Final answer
    x = 1,466.77

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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.