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Finding the Fourth Proportional to 3,567.66, 5,351.51 and 970.60

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Solution

The fourth proportional to 3,567.66, 5,351.51 and 970.60 is: 1,455.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,567.66 : 5,351.51 = 970.60 : x
  2. Step 2: Convert to fraction form
    3,567.66/5,351.51 = 970.60/x
  3. Step 3: Cross multiply
    3,567.66x = 5,351.51 × 970.60
  4. Step 4: Simplify right side
    3,567.66x = 5,194,144.00
  5. Step 5: Solve for x
    x = 5,194,144.00/3,567.66
  6. Step 6: Final answer
    x = 1,455.90

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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.