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Finding the Fourth Proportional to 11,663,999.40, 16,291,807.80 and 11,663,999.40

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Solution

The fourth proportional to 11,663,999.40, 16,291,807.80 and 11,663,999.40 is: 16,291,807.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,663,999.40 : 16,291,807.80 = 11,663,999.40 : x
  2. Step 2: Convert to fraction form
    11,663,999.40/16,291,807.80 = 11,663,999.40/x
  3. Step 3: Cross multiply
    11,663,999.40x = 16,291,807.80 × 11,663,999.40
  4. Step 4: Simplify right side
    11,663,999.40x = 190,027,636,404,115.34
  5. Step 5: Solve for x
    x = 190,027,636,404,115.34/11,663,999.40
  6. Step 6: Final answer
    x = 16,291,807.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.