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Finding the Fourth Proportional to 7,763.72, 10,713.39 and 4,406.60

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Solution

The fourth proportional to 7,763.72, 10,713.39 and 4,406.60 is: 6,080.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,763.72 : 10,713.39 = 4,406.60 : x
  2. Step 2: Convert to fraction form
    7,763.72/10,713.39 = 4,406.60/x
  3. Step 3: Cross multiply
    7,763.72x = 10,713.39 × 4,406.60
  4. Step 4: Simplify right side
    7,763.72x = 47,209,574.37
  5. Step 5: Solve for x
    x = 47,209,574.37/7,763.72
  6. Step 6: Final answer
    x = 6,080.80

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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.