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Finding the Fourth Proportional to 62,218,946.80, 86,904,971.60 and 62,218,946.80

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Solution

The fourth proportional to 62,218,946.80, 86,904,971.60 and 62,218,946.80 is: 86,904,971.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,218,946.80 : 86,904,971.60 = 62,218,946.80 : x
  2. Step 2: Convert to fraction form
    62,218,946.80/86,904,971.60 = 62,218,946.80/x
  3. Step 3: Cross multiply
    62,218,946.80x = 86,904,971.60 × 62,218,946.80
  4. Step 4: Simplify right side
    62,218,946.80x = 5,407,135,804,635,910
  5. Step 5: Solve for x
    x = 5,407,135,804,635,910/62,218,946.80
  6. Step 6: Final answer
    x = 86,904,971.60

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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.