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Finding the Fourth Proportional to 19,110,986.20, 26,830,963.40 and 19,110,986.20

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Solution

The fourth proportional to 19,110,986.20, 26,830,963.40 and 19,110,986.20 is: 26,830,963.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,110,986.20 : 26,830,963.40 = 19,110,986.20 : x
  2. Step 2: Convert to fraction form
    19,110,986.20/26,830,963.40 = 19,110,986.20/x
  3. Step 3: Cross multiply
    19,110,986.20x = 26,830,963.40 × 19,110,986.20
  4. Step 4: Simplify right side
    19,110,986.20x = 512,766,171,270,105.06
  5. Step 5: Solve for x
    x = 512,766,171,270,105.06/19,110,986.20
  6. Step 6: Final answer
    x = 26,830,963.40

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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.