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Finding the Fourth Proportional to 21,008,079,600.60, 31,512,119,400.90 and 21,008,079,600.60

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Solution

The fourth proportional to 21,008,079,600.60, 31,512,119,400.90 and 21,008,079,600.60 is: 31,512,119,400.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,008,079,600.60 : 31,512,119,400.90 = 21,008,079,600.60 : x
  2. Step 2: Convert to fraction form
    21,008,079,600.60/31,512,119,400.90 = 21,008,079,600.60/x
  3. Step 3: Cross multiply
    21,008,079,600.60x = 31,512,119,400.90 × 21,008,079,600.60
  4. Step 4: Simplify right side
    21,008,079,600.60x = 662,009,112,757,718,745,088
  5. Step 5: Solve for x
    x = 662,009,112,757,718,745,088/21,008,079,600.60
  6. Step 6: Final answer
    x = 31,512,119,400.90

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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.