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Finding the Fourth Proportional to 4,955.28, 7,430.30 and 1,667.32

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Solution

The fourth proportional to 4,955.28, 7,430.30 and 1,667.32 is: 2,500.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,955.28 : 7,430.30 = 1,667.32 : x
  2. Step 2: Convert to fraction form
    4,955.28/7,430.30 = 1,667.32/x
  3. Step 3: Cross multiply
    4,955.28x = 7,430.30 × 1,667.32
  4. Step 4: Simplify right side
    4,955.28x = 12,388,687.80
  5. Step 5: Solve for x
    x = 12,388,687.80/4,955.28
  6. Step 6: Final answer
    x = 2,500.10

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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.