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Finding the Fourth Proportional to 19,184.76, 28,776.94 and 7,497.88

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Solution

The fourth proportional to 19,184.76, 28,776.94 and 7,497.88 is: 11,246.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,184.76 : 28,776.94 = 7,497.88 : x
  2. Step 2: Convert to fraction form
    19,184.76/28,776.94 = 7,497.88/x
  3. Step 3: Cross multiply
    19,184.76x = 28,776.94 × 7,497.88
  4. Step 4: Simplify right side
    19,184.76x = 215,766,008.48
  5. Step 5: Solve for x
    x = 215,766,008.48/19,184.76
  6. Step 6: Final answer
    x = 11,246.74

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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.