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Finding the Fourth Proportional to 8,627,848.50, 11,910,745.50 and 5,365,714.16

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Solution

The fourth proportional to 8,627,848.50, 11,910,745.50 and 5,365,714.16 is: 7,407,368.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627,848.50 : 11,910,745.50 = 5,365,714.16 : x
  2. Step 2: Convert to fraction form
    8,627,848.50/11,910,745.50 = 5,365,714.16/x
  3. Step 3: Cross multiply
    8,627,848.50x = 11,910,745.50 × 5,365,714.16
  4. Step 4: Simplify right side
    8,627,848.50x = 63,909,655,785,506.28
  5. Step 5: Solve for x
    x = 63,909,655,785,506.28/8,627,848.50
  6. Step 6: Final answer
    x = 7,407,368.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.