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Finding the Fourth Proportional to 9,860.60, 13,605.40 and 5,880.94

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Solution

The fourth proportional to 9,860.60, 13,605.40 and 5,880.94 is: 8,114.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,860.60 : 13,605.40 = 5,880.94 : x
  2. Step 2: Convert to fraction form
    9,860.60/13,605.40 = 5,880.94/x
  3. Step 3: Cross multiply
    9,860.60x = 13,605.40 × 5,880.94
  4. Step 4: Simplify right side
    9,860.60x = 80,012,514.41
  5. Step 5: Solve for x
    x = 80,012,514.41/9,860.60
  6. Step 6: Final answer
    x = 8,114.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.