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Finding the Fourth Proportional to 19,576.60, 29,364.76 and 4,785.60

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Solution

The fourth proportional to 19,576.60, 29,364.76 and 4,785.60 is: 7,178.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,576.60 : 29,364.76 = 4,785.60 : x
  2. Step 2: Convert to fraction form
    19,576.60/29,364.76 = 4,785.60/x
  3. Step 3: Cross multiply
    19,576.60x = 29,364.76 × 4,785.60
  4. Step 4: Simplify right side
    19,576.60x = 140,527,995.46
  5. Step 5: Solve for x
    x = 140,527,995.46/19,576.60
  6. Step 6: Final answer
    x = 7,178.37

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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.