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Finding the Fourth Proportional to 20,194,365.30, 30,291,547.95 and 17,005,719.30

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Solution

The fourth proportional to 20,194,365.30, 30,291,547.95 and 17,005,719.30 is: 25,508,578.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,194,365.30 : 30,291,547.95 = 17,005,719.30 : x
  2. Step 2: Convert to fraction form
    20,194,365.30/30,291,547.95 = 17,005,719.30/x
  3. Step 3: Cross multiply
    20,194,365.30x = 30,291,547.95 × 17,005,719.30
  4. Step 4: Simplify right side
    20,194,365.30x = 515,129,561,600,190.44
  5. Step 5: Solve for x
    x = 515,129,561,600,190.44/20,194,365.30
  6. Step 6: Final answer
    x = 25,508,578.95

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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.