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Finding the Fourth Proportional to 8,579.02, 12,862.20 and 5,798.80

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Solution

The fourth proportional to 8,579.02, 12,862.20 and 5,798.80 is: 8,693.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.02 : 12,862.20 = 5,798.80 : x
  2. Step 2: Convert to fraction form
    8,579.02/12,862.20 = 5,798.80/x
  3. Step 3: Cross multiply
    8,579.02x = 12,862.20 × 5,798.80
  4. Step 4: Simplify right side
    8,579.02x = 74,585,325.36
  5. Step 5: Solve for x
    x = 74,585,325.36/8,579.02
  6. Step 6: Final answer
    x = 8,693.92

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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.