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Finding the Fourth Proportional to 19,157.20, 28,735.80 and 16,095.40

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Solution

The fourth proportional to 19,157.20, 28,735.80 and 16,095.40 is: 24,143.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157.20 : 28,735.80 = 16,095.40 : x
  2. Step 2: Convert to fraction form
    19,157.20/28,735.80 = 16,095.40/x
  3. Step 3: Cross multiply
    19,157.20x = 28,735.80 × 16,095.40
  4. Step 4: Simplify right side
    19,157.20x = 462,514,195.32
  5. Step 5: Solve for x
    x = 462,514,195.32/19,157.20
  6. Step 6: Final answer
    x = 24,143.10

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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.