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Finding the Fourth Proportional to 19,422,739.20, 27,141,446.40 and 19,422,739.20

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Solution

The fourth proportional to 19,422,739.20, 27,141,446.40 and 19,422,739.20 is: 27,141,446.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,422,739.20 : 27,141,446.40 = 19,422,739.20 : x
  2. Step 2: Convert to fraction form
    19,422,739.20/27,141,446.40 = 19,422,739.20/x
  3. Step 3: Cross multiply
    19,422,739.20x = 27,141,446.40 × 19,422,739.20
  4. Step 4: Simplify right side
    19,422,739.20x = 527,161,234,937,978.81
  5. Step 5: Solve for x
    x = 527,161,234,937,978.81/19,422,739.20
  6. Step 6: Final answer
    x = 27,141,446.40

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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.