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Finding the Fourth Proportional to 7,841,750.40, 11,746,879.20 and 4,472,020.80

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Solution

The fourth proportional to 7,841,750.40, 11,746,879.20 and 4,472,020.80 is: 6,699,051.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,841,750.40 : 11,746,879.20 = 4,472,020.80 : x
  2. Step 2: Convert to fraction form
    7,841,750.40/11,746,879.20 = 4,472,020.80/x
  3. Step 3: Cross multiply
    7,841,750.40x = 11,746,879.20 × 4,472,020.80
  4. Step 4: Simplify right side
    7,841,750.40x = 52,532,288,117,487.35
  5. Step 5: Solve for x
    x = 52,532,288,117,487.35/7,841,750.40
  6. Step 6: Final answer
    x = 6,699,051.29

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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.