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Finding the Fourth Proportional to 7,866.79, 10,859.77 and 5,599.60

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Solution

The fourth proportional to 7,866.79, 10,859.77 and 5,599.60 is: 7,730.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,866.79 : 10,859.77 = 5,599.60 : x
  2. Step 2: Convert to fraction form
    7,866.79/10,859.77 = 5,599.60/x
  3. Step 3: Cross multiply
    7,866.79x = 10,859.77 × 5,599.60
  4. Step 4: Simplify right side
    7,866.79x = 60,810,347.94
  5. Step 5: Solve for x
    x = 60,810,347.94/7,866.79
  6. Step 6: Final answer
    x = 7,730.01

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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.