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Finding the Fourth Proportional to 19,063.60, 28,530.60 and 16,730.80

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Solution

The fourth proportional to 19,063.60, 28,530.60 and 16,730.80 is: 25,039.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,063.60 : 28,530.60 = 16,730.80 : x
  2. Step 2: Convert to fraction form
    19,063.60/28,530.60 = 16,730.80/x
  3. Step 3: Cross multiply
    19,063.60x = 28,530.60 × 16,730.80
  4. Step 4: Simplify right side
    19,063.60x = 477,339,762.48
  5. Step 5: Solve for x
    x = 477,339,762.48/19,063.60
  6. Step 6: Final answer
    x = 25,039.33

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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.