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Finding the Fourth Proportional to 19,296.41, 28,958.46 and 8,210.89

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Solution

The fourth proportional to 19,296.41, 28,958.46 and 8,210.89 is: 12,322.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,296.41 : 28,958.46 = 8,210.89 : x
  2. Step 2: Convert to fraction form
    19,296.41/28,958.46 = 8,210.89/x
  3. Step 3: Cross multiply
    19,296.41x = 28,958.46 × 8,210.89
  4. Step 4: Simplify right side
    19,296.41x = 237,774,618.33
  5. Step 5: Solve for x
    x = 237,774,618.33/19,296.41
  6. Step 6: Final answer
    x = 12,322.22

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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.