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Finding the Fourth Proportional to 20,701,884,804.60, 31,052,827,206.90 and 20,701,884,804.60

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Solution

The fourth proportional to 20,701,884,804.60, 31,052,827,206.90 and 20,701,884,804.60 is: 31,052,827,206.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701,884,804.60 : 31,052,827,206.90 = 20,701,884,804.60 : x
  2. Step 2: Convert to fraction form
    20,701,884,804.60/31,052,827,206.90 = 20,701,884,804.60/x
  3. Step 3: Cross multiply
    20,701,884,804.60x = 31,052,827,206.90 × 20,701,884,804.60
  4. Step 4: Simplify right side
    20,701,884,804.60x = 642,852,051,694,392,573,952
  5. Step 5: Solve for x
    x = 642,852,051,694,392,573,952/20,701,884,804.60
  6. Step 6: Final answer
    x = 31,052,827,206.90

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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.