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Finding the Fourth Proportional to 5,728.51, 8,603.70 and 3,541.51

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Solution

The fourth proportional to 5,728.51, 8,603.70 and 3,541.51 is: 5,319.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,728.51 : 8,603.70 = 3,541.51 : x
  2. Step 2: Convert to fraction form
    5,728.51/8,603.70 = 3,541.51/x
  3. Step 3: Cross multiply
    5,728.51x = 8,603.70 × 3,541.51
  4. Step 4: Simplify right side
    5,728.51x = 30,470,089.59
  5. Step 5: Solve for x
    x = 30,470,089.59/5,728.51
  6. Step 6: Final answer
    x = 5,319.03

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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.