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Finding the Fourth Proportional to 7,860.69, 11,780.01 and 4,352.31

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Solution

The fourth proportional to 7,860.69, 11,780.01 and 4,352.31 is: 6,522.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,860.69 : 11,780.01 = 4,352.31 : x
  2. Step 2: Convert to fraction form
    7,860.69/11,780.01 = 4,352.31/x
  3. Step 3: Cross multiply
    7,860.69x = 11,780.01 × 4,352.31
  4. Step 4: Simplify right side
    7,860.69x = 51,270,255.32
  5. Step 5: Solve for x
    x = 51,270,255.32/7,860.69
  6. Step 6: Final answer
    x = 6,522.36

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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.