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Finding the Fourth Proportional to 8,751,944.64, 13,121,117.88 and 5,671,427.88

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Solution

The fourth proportional to 8,751,944.64, 13,121,117.88 and 5,671,427.88 is: 8,502,735.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751,944.64 : 13,121,117.88 = 5,671,427.88 : x
  2. Step 2: Convert to fraction form
    8,751,944.64/13,121,117.88 = 5,671,427.88/x
  3. Step 3: Cross multiply
    8,751,944.64x = 13,121,117.88 × 5,671,427.88
  4. Step 4: Simplify right side
    8,751,944.64x = 74,415,473,761,398.50
  5. Step 5: Solve for x
    x = 74,415,473,761,398.50/8,751,944.64
  6. Step 6: Final answer
    x = 8,502,735.89

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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.