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Finding the Fourth Proportional to 7,892,652, 10,891,869.48 and 4,270,980

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Solution

The fourth proportional to 7,892,652, 10,891,869.48 and 4,270,980 is: 5,893,957.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,892,652 : 10,891,869.48 = 4,270,980 : x
  2. Step 2: Convert to fraction form
    7,892,652/10,891,869.48 = 4,270,980/x
  3. Step 3: Cross multiply
    7,892,652x = 10,891,869.48 × 4,270,980
  4. Step 4: Simplify right side
    7,892,652x = 46,518,956,711,690.40
  5. Step 5: Solve for x
    x = 46,518,956,711,690.40/7,892,652
  6. Step 6: Final answer
    x = 5,893,957.66

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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.