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Finding the Fourth Proportional to 56,991,750,420.80, 79,625,376,049.60 and 56,991,750,420.80

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Solution

The fourth proportional to 56,991,750,420.80, 79,625,376,049.60 and 56,991,750,420.80 is: 79,625,376,049.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,991,750,420.80 : 79,625,376,049.60 = 56,991,750,420.80 : x
  2. Step 2: Convert to fraction form
    56,991,750,420.80/79,625,376,049.60 = 56,991,750,420.80/x
  3. Step 3: Cross multiply
    56,991,750,420.80x = 79,625,376,049.60 × 56,991,750,420.80
  4. Step 4: Simplify right side
    56,991,750,420.80x = 4,537,989,558,981,149,851,648
  5. Step 5: Solve for x
    x = 4,537,989,558,981,149,851,648/56,991,750,420.80
  6. Step 6: Final answer
    x = 79,625,376,049.60

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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.