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Finding the Fourth Proportional to 2,659,391,711.95, 3,989,087,567.93 and 2,659,391,711.95

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Solution

The fourth proportional to 2,659,391,711.95, 3,989,087,567.93 and 2,659,391,711.95 is: 3,989,087,567.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,659,391,711.95 : 3,989,087,567.93 = 2,659,391,711.95 : x
  2. Step 2: Convert to fraction form
    2,659,391,711.95/3,989,087,567.93 = 2,659,391,711.95/x
  3. Step 3: Cross multiply
    2,659,391,711.95x = 3,989,087,567.93 × 2,659,391,711.95
  4. Step 4: Simplify right side
    2,659,391,711.95x = 10,608,546,416,382,527,488
  5. Step 5: Solve for x
    x = 10,608,546,416,382,527,488/2,659,391,711.95
  6. Step 6: Final answer
    x = 3,989,087,567.93

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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.