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Finding the Fourth Proportional to 4,698.60, 7,047.90 and 2,506.20

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Solution

The fourth proportional to 4,698.60, 7,047.90 and 2,506.20 is: 3,759.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,698.60 : 7,047.90 = 2,506.20 : x
  2. Step 2: Convert to fraction form
    4,698.60/7,047.90 = 2,506.20/x
  3. Step 3: Cross multiply
    4,698.60x = 7,047.90 × 2,506.20
  4. Step 4: Simplify right side
    4,698.60x = 17,663,446.98
  5. Step 5: Solve for x
    x = 17,663,446.98/4,698.60
  6. Step 6: Final answer
    x = 3,759.30

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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.