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Finding the Fourth Proportional to 19,008,087.40, 28,512,131.10 and 19,008,087.40

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Solution

The fourth proportional to 19,008,087.40, 28,512,131.10 and 19,008,087.40 is: 28,512,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008,087.40 : 28,512,131.10 = 19,008,087.40 : x
  2. Step 2: Convert to fraction form
    19,008,087.40/28,512,131.10 = 19,008,087.40/x
  3. Step 3: Cross multiply
    19,008,087.40x = 28,512,131.10 × 19,008,087.40
  4. Step 4: Simplify right side
    19,008,087.40x = 541,961,079,909,058.12
  5. Step 5: Solve for x
    x = 541,961,079,909,058.12/19,008,087.40
  6. Step 6: Final answer
    x = 28,512,131.10

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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.