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Finding the Fourth Proportional to 5,721.58, 7,900.23 and 4,393.18

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Solution

The fourth proportional to 5,721.58, 7,900.23 and 4,393.18 is: 6,066.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,721.58 : 7,900.23 = 4,393.18 : x
  2. Step 2: Convert to fraction form
    5,721.58/7,900.23 = 4,393.18/x
  3. Step 3: Cross multiply
    5,721.58x = 7,900.23 × 4,393.18
  4. Step 4: Simplify right side
    5,721.58x = 34,707,132.43
  5. Step 5: Solve for x
    x = 34,707,132.43/5,721.58
  6. Step 6: Final answer
    x = 6,066.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.