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Finding the Fourth Proportional to 7,898,559.60, 11,824,219.80 and 4,702,040.40

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Solution

The fourth proportional to 7,898,559.60, 11,824,219.80 and 4,702,040.40 is: 7,038,999.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,898,559.60 : 11,824,219.80 = 4,702,040.40 : x
  2. Step 2: Convert to fraction form
    7,898,559.60/11,824,219.80 = 4,702,040.40/x
  3. Step 3: Cross multiply
    7,898,559.60x = 11,824,219.80 × 4,702,040.40
  4. Step 4: Simplify right side
    7,898,559.60x = 55,597,959,198,079.93
  5. Step 5: Solve for x
    x = 55,597,959,198,079.93/7,898,559.60
  6. Step 6: Final answer
    x = 7,038,999.77

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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.