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Finding the Fourth Proportional to 11,663,999.40, 17,495,999.10 and 10,866,837.90

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Solution

The fourth proportional to 11,663,999.40, 17,495,999.10 and 10,866,837.90 is: 16,300,256.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,663,999.40 : 17,495,999.10 = 10,866,837.90 : x
  2. Step 2: Convert to fraction form
    11,663,999.40/17,495,999.10 = 10,866,837.90/x
  3. Step 3: Cross multiply
    11,663,999.40x = 17,495,999.10 × 10,866,837.90
  4. Step 4: Simplify right side
    11,663,999.40x = 190,126,186,118,245.91
  5. Step 5: Solve for x
    x = 190,126,186,118,245.91/11,663,999.40
  6. Step 6: Final answer
    x = 16,300,256.85

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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.