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Finding the Fourth Proportional to 65,658,993.72, 98,493,574.74 and 21,939,903.96

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Solution

The fourth proportional to 65,658,993.72, 98,493,574.74 and 21,939,903.96 is: 32,911,554.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,658,993.72 : 98,493,574.74 = 21,939,903.96 : x
  2. Step 2: Convert to fraction form
    65,658,993.72/98,493,574.74 = 21,939,903.96/x
  3. Step 3: Cross multiply
    65,658,993.72x = 98,493,574.74 × 21,939,903.96
  4. Step 4: Simplify right side
    65,658,993.72x = 2,160,939,570,472,682
  5. Step 5: Solve for x
    x = 2,160,939,570,472,682/65,658,993.72
  6. Step 6: Final answer
    x = 32,911,554.81

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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.