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Finding the Fourth Proportional to 20,707,133,073.90, 31,060,699,610.85 and 20,707,133,073.90

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Solution

The fourth proportional to 20,707,133,073.90, 31,060,699,610.85 and 20,707,133,073.90 is: 31,060,699,610.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,707,133,073.90 : 31,060,699,610.85 = 20,707,133,073.90 : x
  2. Step 2: Convert to fraction form
    20,707,133,073.90/31,060,699,610.85 = 20,707,133,073.90/x
  3. Step 3: Cross multiply
    20,707,133,073.90x = 31,060,699,610.85 × 20,707,133,073.90
  4. Step 4: Simplify right side
    20,707,133,073.90x = 643,178,040,210,304,925,696
  5. Step 5: Solve for x
    x = 643,178,040,210,304,925,696/20,707,133,073.90
  6. Step 6: Final answer
    x = 31,060,699,610.85

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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.