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Finding the Fourth Proportional to 6,489,785.51, 8,955,541.59 and 3,549,022.32

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Solution

The fourth proportional to 6,489,785.51, 8,955,541.59 and 3,549,022.32 is: 4,897,452.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,489,785.51 : 8,955,541.59 = 3,549,022.32 : x
  2. Step 2: Convert to fraction form
    6,489,785.51/8,955,541.59 = 3,549,022.32/x
  3. Step 3: Cross multiply
    6,489,785.51x = 8,955,541.59 × 3,549,022.32
  4. Step 4: Simplify right side
    6,489,785.51x = 31,783,416,990,598.29
  5. Step 5: Solve for x
    x = 31,783,416,990,598.29/6,489,785.51
  6. Step 6: Final answer
    x = 4,897,452.61

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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.