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Finding the Fourth Proportional to 8,860.40, 13,290.60 and 6,095.60

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Solution

The fourth proportional to 8,860.40, 13,290.60 and 6,095.60 is: 9,143.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,860.40 : 13,290.60 = 6,095.60 : x
  2. Step 2: Convert to fraction form
    8,860.40/13,290.60 = 6,095.60/x
  3. Step 3: Cross multiply
    8,860.40x = 13,290.60 × 6,095.60
  4. Step 4: Simplify right side
    8,860.40x = 81,014,181.36
  5. Step 5: Solve for x
    x = 81,014,181.36/8,860.40
  6. Step 6: Final answer
    x = 9,143.40

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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.