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Finding the Fourth Proportional to 6,613,484.56, 9,125,978.28 and 3,712,210.48

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Solution

The fourth proportional to 6,613,484.56, 9,125,978.28 and 3,712,210.48 is: 5,122,496.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,613,484.56 : 9,125,978.28 = 3,712,210.48 : x
  2. Step 2: Convert to fraction form
    6,613,484.56/9,125,978.28 = 3,712,210.48/x
  3. Step 3: Cross multiply
    6,613,484.56x = 9,125,978.28 × 3,712,210.48
  4. Step 4: Simplify right side
    6,613,484.56x = 33,877,552,211,268.37
  5. Step 5: Solve for x
    x = 33,877,552,211,268.37/6,613,484.56
  6. Step 6: Final answer
    x = 5,122,496.61

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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.