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Finding the Fourth Proportional to 18,946.58, 28,423.11 and 5,797.58

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Solution

The fourth proportional to 18,946.58, 28,423.11 and 5,797.58 is: 8,697.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,946.58 : 28,423.11 = 5,797.58 : x
  2. Step 2: Convert to fraction form
    18,946.58/28,423.11 = 5,797.58/x
  3. Step 3: Cross multiply
    18,946.58x = 28,423.11 × 5,797.58
  4. Step 4: Simplify right side
    18,946.58x = 164,785,254.07
  5. Step 5: Solve for x
    x = 164,785,254.07/18,946.58
  6. Step 6: Final answer
    x = 8,697.36

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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.