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Finding the Fourth Proportional to 4,859.99, 7,290.09 and 1,740.21

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Solution

The fourth proportional to 4,859.99, 7,290.09 and 1,740.21 is: 2,610.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,859.99 : 7,290.09 = 1,740.21 : x
  2. Step 2: Convert to fraction form
    4,859.99/7,290.09 = 1,740.21/x
  3. Step 3: Cross multiply
    4,859.99x = 7,290.09 × 1,740.21
  4. Step 4: Simplify right side
    4,859.99x = 12,686,260.18
  5. Step 5: Solve for x
    x = 12,686,260.18/4,859.99
  6. Step 6: Final answer
    x = 2,610.35

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Double scale
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Similar ratio
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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.