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Finding the Fourth Proportional to 5,133.50, 7,700.62 and 2,055.50

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Solution

The fourth proportional to 5,133.50, 7,700.62 and 2,055.50 is: 3,083.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,133.50 : 7,700.62 = 2,055.50 : x
  2. Step 2: Convert to fraction form
    5,133.50/7,700.62 = 2,055.50/x
  3. Step 3: Cross multiply
    5,133.50x = 7,700.62 × 2,055.50
  4. Step 4: Simplify right side
    5,133.50x = 15,828,624.41
  5. Step 5: Solve for x
    x = 15,828,624.41/5,133.50
  6. Step 6: Final answer
    x = 3,083.40

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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.