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Finding the Fourth Proportional to 9,687,389,616.80, 13,571,528,764 and 9,687,389,616.80

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Solution

The fourth proportional to 9,687,389,616.80, 13,571,528,764 and 9,687,389,616.80 is: 13,571,528,764

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,687,389,616.80 : 13,571,528,764 = 9,687,389,616.80 : x
  2. Step 2: Convert to fraction form
    9,687,389,616.80/13,571,528,764 = 9,687,389,616.80/x
  3. Step 3: Cross multiply
    9,687,389,616.80x = 13,571,528,764 × 9,687,389,616.80
  4. Step 4: Simplify right side
    9,687,389,616.80x = 131,472,686,832,476,127,232
  5. Step 5: Solve for x
    x = 131,472,686,832,476,127,232/9,687,389,616.80
  6. Step 6: Final answer
    x = 13,571,528,764

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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.