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Finding the Fourth Proportional to 9,859,303.60, 13,605,844.73 and 5,508,389.90

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Solution

The fourth proportional to 9,859,303.60, 13,605,844.73 and 5,508,389.90 is: 7,601,581.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,859,303.60 : 13,605,844.73 = 5,508,389.90 : x
  2. Step 2: Convert to fraction form
    9,859,303.60/13,605,844.73 = 5,508,389.90/x
  3. Step 3: Cross multiply
    9,859,303.60x = 13,605,844.73 × 5,508,389.90
  4. Step 4: Simplify right side
    9,859,303.60x = 74,946,297,739,485.81
  5. Step 5: Solve for x
    x = 74,946,297,739,485.81/9,859,303.60
  6. Step 6: Final answer
    x = 7,601,581.29

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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.