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Finding the Fourth Proportional to 18,615,895,660.80, 27,923,843,491.20 and 18,615,895,660.80

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Solution

The fourth proportional to 18,615,895,660.80, 27,923,843,491.20 and 18,615,895,660.80 is: 27,923,843,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,615,895,660.80 : 27,923,843,491.20 = 18,615,895,660.80 : x
  2. Step 2: Convert to fraction form
    18,615,895,660.80/27,923,843,491.20 = 18,615,895,660.80/x
  3. Step 3: Cross multiply
    18,615,895,660.80x = 27,923,843,491.20 × 18,615,895,660.80
  4. Step 4: Simplify right side
    18,615,895,660.80x = 519,827,356,880,688,381,952
  5. Step 5: Solve for x
    x = 519,827,356,880,688,381,952/18,615,895,660.80
  6. Step 6: Final answer
    x = 27,923,843,491.20

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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.