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Finding the Fourth Proportional to 13,159,991.60, 19,739,987.40 and 9,333,616.40

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Solution

The fourth proportional to 13,159,991.60, 19,739,987.40 and 9,333,616.40 is: 14,000,424.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,159,991.60 : 19,739,987.40 = 9,333,616.40 : x
  2. Step 2: Convert to fraction form
    13,159,991.60/19,739,987.40 = 9,333,616.40/x
  3. Step 3: Cross multiply
    13,159,991.60x = 19,739,987.40 × 9,333,616.40
  4. Step 4: Simplify right side
    13,159,991.60x = 184,245,470,132,433.34
  5. Step 5: Solve for x
    x = 184,245,470,132,433.34/13,159,991.60
  6. Step 6: Final answer
    x = 14,000,424.60

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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.