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Finding the Fourth Proportional to 22,798,424.40, 34,222,519.80 and 12,720,728.40

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Solution

The fourth proportional to 22,798,424.40, 34,222,519.80 and 12,720,728.40 is: 19,094,976.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,798,424.40 : 34,222,519.80 = 12,720,728.40 : x
  2. Step 2: Convert to fraction form
    22,798,424.40/34,222,519.80 = 12,720,728.40/x
  3. Step 3: Cross multiply
    22,798,424.40x = 34,222,519.80 × 12,720,728.40
  4. Step 4: Simplify right side
    22,798,424.40x = 435,335,379,539,422.31
  5. Step 5: Solve for x
    x = 435,335,379,539,422.31/22,798,424.40
  6. Step 6: Final answer
    x = 19,094,976.56

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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.