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Finding the Fourth Proportional to 7,854,337,892.80, 11,781,506,839.20 and 7,854,337,892.80

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Solution

The fourth proportional to 7,854,337,892.80, 11,781,506,839.20 and 7,854,337,892.80 is: 11,781,506,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854,337,892.80 : 11,781,506,839.20 = 7,854,337,892.80 : x
  2. Step 2: Convert to fraction form
    7,854,337,892.80/11,781,506,839.20 = 7,854,337,892.80/x
  3. Step 3: Cross multiply
    7,854,337,892.80x = 11,781,506,839.20 × 7,854,337,892.80
  4. Step 4: Simplify right side
    7,854,337,892.80x = 92,535,935,601,410,932,736
  5. Step 5: Solve for x
    x = 92,535,935,601,410,932,736/7,854,337,892.80
  6. Step 6: Final answer
    x = 11,781,506,839.20

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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.