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Finding the Fourth Proportional to 17,218,655,998.80, 25,787,169,329.40 and 17,218,655,998.80

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Solution

The fourth proportional to 17,218,655,998.80, 25,787,169,329.40 and 17,218,655,998.80 is: 25,787,169,329.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,218,655,998.80 : 25,787,169,329.40 = 17,218,655,998.80 : x
  2. Step 2: Convert to fraction form
    17,218,655,998.80/25,787,169,329.40 = 17,218,655,998.80/x
  3. Step 3: Cross multiply
    17,218,655,998.80x = 25,787,169,329.40 × 17,218,655,998.80
  4. Step 4: Simplify right side
    17,218,655,998.80x = 444,020,397,865,744,662,528
  5. Step 5: Solve for x
    x = 444,020,397,865,744,662,528/17,218,655,998.80
  6. Step 6: Final answer
    x = 25,787,169,329.40

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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.