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Finding the Fourth Proportional to 18,592,627,999.20, 27,888,941,998.80 and 18,592,627,999.20

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Solution

The fourth proportional to 18,592,627,999.20, 27,888,941,998.80 and 18,592,627,999.20 is: 27,888,941,998.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,592,627,999.20 : 27,888,941,998.80 = 18,592,627,999.20 : x
  2. Step 2: Convert to fraction form
    18,592,627,999.20/27,888,941,998.80 = 18,592,627,999.20/x
  3. Step 3: Cross multiply
    18,592,627,999.20x = 27,888,941,998.80 × 18,592,627,999.20
  4. Step 4: Simplify right side
    18,592,627,999.20x = 518,528,723,874,953,691,136
  5. Step 5: Solve for x
    x = 518,528,723,874,953,691,136/18,592,627,999.20
  6. Step 6: Final answer
    x = 27,888,941,998.80

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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.