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Finding the Fourth Proportional to 21,923,999.90, 30,760,784.50 and 21,923,999.90

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Solution

The fourth proportional to 21,923,999.90, 30,760,784.50 and 21,923,999.90 is: 30,760,784.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,923,999.90 : 30,760,784.50 = 21,923,999.90 : x
  2. Step 2: Convert to fraction form
    21,923,999.90/30,760,784.50 = 21,923,999.90/x
  3. Step 3: Cross multiply
    21,923,999.90x = 30,760,784.50 × 21,923,999.90
  4. Step 4: Simplify right side
    21,923,999.90x = 674,399,436,301,921.50
  5. Step 5: Solve for x
    x = 674,399,436,301,921.50/21,923,999.90
  6. Step 6: Final answer
    x = 30,760,784.50

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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.