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Finding the Fourth Proportional to 12,592,101.40, 18,892,817.70 and 12,125,541.40

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Solution

The fourth proportional to 12,592,101.40, 18,892,817.70 and 12,125,541.40 is: 18,192,804.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,592,101.40 : 18,892,817.70 = 12,125,541.40 : x
  2. Step 2: Convert to fraction form
    12,592,101.40/18,892,817.70 = 12,125,541.40/x
  3. Step 3: Cross multiply
    12,592,101.40x = 18,892,817.70 × 12,125,541.40
  4. Step 4: Simplify right side
    12,592,101.40x = 229,085,643,184,002.78
  5. Step 5: Solve for x
    x = 229,085,643,184,002.78/12,592,101.40
  6. Step 6: Final answer
    x = 18,192,804.83

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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.