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Finding the Fourth Proportional to 18,902,276.34, 28,353,414.51 and 18,902,276.34

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Solution

The fourth proportional to 18,902,276.34, 28,353,414.51 and 18,902,276.34 is: 28,353,414.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,902,276.34 : 28,353,414.51 = 18,902,276.34 : x
  2. Step 2: Convert to fraction form
    18,902,276.34/28,353,414.51 = 18,902,276.34/x
  3. Step 3: Cross multiply
    18,902,276.34x = 28,353,414.51 × 18,902,276.34
  4. Step 4: Simplify right side
    18,902,276.34x = 535,944,076,250,585.75
  5. Step 5: Solve for x
    x = 535,944,076,250,585.75/18,902,276.34
  6. Step 6: Final answer
    x = 28,353,414.51

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Double scale
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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.