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Finding the Fourth Proportional to 8,797.80, 12,140.61 and 5,260.32

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Solution

The fourth proportional to 8,797.80, 12,140.61 and 5,260.32 is: 7,259.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,797.80 : 12,140.61 = 5,260.32 : x
  2. Step 2: Convert to fraction form
    8,797.80/12,140.61 = 5,260.32/x
  3. Step 3: Cross multiply
    8,797.80x = 12,140.61 × 5,260.32
  4. Step 4: Simplify right side
    8,797.80x = 63,863,493.60
  5. Step 5: Solve for x
    x = 63,863,493.60/8,797.80
  6. Step 6: Final answer
    x = 7,259.03

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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.