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Finding the Fourth Proportional to 12,563,959.40, 18,845,939.10 and 12,563,959.40

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Solution

The fourth proportional to 12,563,959.40, 18,845,939.10 and 12,563,959.40 is: 18,845,939.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,563,959.40 : 18,845,939.10 = 12,563,959.40 : x
  2. Step 2: Convert to fraction form
    12,563,959.40/18,845,939.10 = 12,563,959.40/x
  3. Step 3: Cross multiply
    12,563,959.40x = 18,845,939.10 × 12,563,959.40
  4. Step 4: Simplify right side
    12,563,959.40x = 236,779,613,707,272.56
  5. Step 5: Solve for x
    x = 236,779,613,707,272.56/12,563,959.40
  6. Step 6: Final answer
    x = 18,845,939.10

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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.