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Finding the Fourth Proportional to 18,592,897.40, 27,889,346.10 and 15,616,827.80

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Solution

The fourth proportional to 18,592,897.40, 27,889,346.10 and 15,616,827.80 is: 23,425,241.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,592,897.40 : 27,889,346.10 = 15,616,827.80 : x
  2. Step 2: Convert to fraction form
    18,592,897.40/27,889,346.10 = 15,616,827.80/x
  3. Step 3: Cross multiply
    18,592,897.40x = 27,889,346.10 × 15,616,827.80
  4. Step 4: Simplify right side
    18,592,897.40x = 435,543,115,498,301.62
  5. Step 5: Solve for x
    x = 435,543,115,498,301.62/18,592,897.40
  6. Step 6: Final answer
    x = 23,425,241.70

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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.