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Finding the Fourth Proportional to 9,873,009.60, 14,809,514.40 and 8,991,211.20

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Solution

The fourth proportional to 9,873,009.60, 14,809,514.40 and 8,991,211.20 is: 13,486,816.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,873,009.60 : 14,809,514.40 = 8,991,211.20 : x
  2. Step 2: Convert to fraction form
    9,873,009.60/14,809,514.40 = 8,991,211.20/x
  3. Step 3: Cross multiply
    9,873,009.60x = 14,809,514.40 × 8,991,211.20
  4. Step 4: Simplify right side
    9,873,009.60x = 133,155,471,739,841.27
  5. Step 5: Solve for x
    x = 133,155,471,739,841.27/9,873,009.60
  6. Step 6: Final answer
    x = 13,486,816.80

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Similar ratio
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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.