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Finding the Fourth Proportional to 19,236,857,891.40, 28,855,286,837.10 and 19,236,857,891.40

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Solution

The fourth proportional to 19,236,857,891.40, 28,855,286,837.10 and 19,236,857,891.40 is: 28,855,286,837.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,236,857,891.40 : 28,855,286,837.10 = 19,236,857,891.40 : x
  2. Step 2: Convert to fraction form
    19,236,857,891.40/28,855,286,837.10 = 19,236,857,891.40/x
  3. Step 3: Cross multiply
    19,236,857,891.40x = 28,855,286,837.10 × 19,236,857,891.40
  4. Step 4: Simplify right side
    19,236,857,891.40x = 555,085,052,300,877,692,928
  5. Step 5: Solve for x
    x = 555,085,052,300,877,692,928/19,236,857,891.40
  6. Step 6: Final answer
    x = 28,855,286,837.10

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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.