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Finding the Fourth Proportional to 3,554.32, 5,331.48 and 957.32

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Solution

The fourth proportional to 3,554.32, 5,331.48 and 957.32 is: 1,435.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,554.32 : 5,331.48 = 957.32 : x
  2. Step 2: Convert to fraction form
    3,554.32/5,331.48 = 957.32/x
  3. Step 3: Cross multiply
    3,554.32x = 5,331.48 × 957.32
  4. Step 4: Simplify right side
    3,554.32x = 5,103,932.43
  5. Step 5: Solve for x
    x = 5,103,932.43/3,554.32
  6. Step 6: Final answer
    x = 1,435.98

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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.