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Finding the Fourth Proportional to 28,042.27, 42,042.48 and 16,946.44

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Solution

The fourth proportional to 28,042.27, 42,042.48 and 16,946.44 is: 25,407.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042.27 : 42,042.48 = 16,946.44 : x
  2. Step 2: Convert to fraction form
    28,042.27/42,042.48 = 16,946.44/x
  3. Step 3: Cross multiply
    28,042.27x = 42,042.48 × 16,946.44
  4. Step 4: Simplify right side
    28,042.27x = 712,470,364.77
  5. Step 5: Solve for x
    x = 712,470,364.77/28,042.27
  6. Step 6: Final answer
    x = 25,407.01

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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.