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Finding the Fourth Proportional to 11,663,985.60, 17,495,978.40 and 10,954,814.40

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Solution

The fourth proportional to 11,663,985.60, 17,495,978.40 and 10,954,814.40 is: 16,432,221.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,663,985.60 : 17,495,978.40 = 10,954,814.40 : x
  2. Step 2: Convert to fraction form
    11,663,985.60/17,495,978.40 = 10,954,814.40/x
  3. Step 3: Cross multiply
    11,663,985.60x = 17,495,978.40 × 10,954,814.40
  4. Step 4: Simplify right side
    11,663,985.60x = 191,665,196,118,408.94
  5. Step 5: Solve for x
    x = 191,665,196,118,408.94/11,663,985.60
  6. Step 6: Final answer
    x = 16,432,221.60

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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.