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Finding the Fourth Proportional to 19,199.46, 28,798.18 and 7,358.91

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Solution

The fourth proportional to 19,199.46, 28,798.18 and 7,358.91 is: 11,037.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,199.46 : 28,798.18 = 7,358.91 : x
  2. Step 2: Convert to fraction form
    19,199.46/28,798.18 = 7,358.91/x
  3. Step 3: Cross multiply
    19,199.46x = 28,798.18 × 7,358.91
  4. Step 4: Simplify right side
    19,199.46x = 211,923,214.78
  5. Step 5: Solve for x
    x = 211,923,214.78/19,199.46
  6. Step 6: Final answer
    x = 11,037.98

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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.