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Finding the Fourth Proportional to 19,209.90, 28,818.90 and 6,063.60

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Solution

The fourth proportional to 19,209.90, 28,818.90 and 6,063.60 is: 9,096.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,209.90 : 28,818.90 = 6,063.60 : x
  2. Step 2: Convert to fraction form
    19,209.90/28,818.90 = 6,063.60/x
  3. Step 3: Cross multiply
    19,209.90x = 28,818.90 × 6,063.60
  4. Step 4: Simplify right side
    19,209.90x = 174,746,282.04
  5. Step 5: Solve for x
    x = 174,746,282.04/19,209.90
  6. Step 6: Final answer
    x = 9,096.68

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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.