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Finding the Fourth Proportional to 21,061,636.20, 29,550,063.60 and 21,061,636.20

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Solution

The fourth proportional to 21,061,636.20, 29,550,063.60 and 21,061,636.20 is: 29,550,063.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,061,636.20 : 29,550,063.60 = 21,061,636.20 : x
  2. Step 2: Convert to fraction form
    21,061,636.20/29,550,063.60 = 21,061,636.20/x
  3. Step 3: Cross multiply
    21,061,636.20x = 29,550,063.60 × 21,061,636.20
  4. Step 4: Simplify right side
    21,061,636.20x = 622,372,689,230,062.38
  5. Step 5: Solve for x
    x = 622,372,689,230,062.38/21,061,636.20
  6. Step 6: Final answer
    x = 29,550,063.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.