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Finding the Fourth Proportional to 3,435.33, 5,153.20 and 970.34

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Solution

The fourth proportional to 3,435.33, 5,153.20 and 970.34 is: 1,455.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,435.33 : 5,153.20 = 970.34 : x
  2. Step 2: Convert to fraction form
    3,435.33/5,153.20 = 970.34/x
  3. Step 3: Cross multiply
    3,435.33x = 5,153.20 × 970.34
  4. Step 4: Simplify right side
    3,435.33x = 5,000,356.09
  5. Step 5: Solve for x
    x = 5,000,356.09/3,435.33
  6. Step 6: Final answer
    x = 1,455.57

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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.