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Finding the Fourth Proportional to 13,361,827.60, 20,042,645.40 and 3,264,355.60

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Solution

The fourth proportional to 13,361,827.60, 20,042,645.40 and 3,264,355.60 is: 4,896,509.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,361,827.60 : 20,042,645.40 = 3,264,355.60 : x
  2. Step 2: Convert to fraction form
    13,361,827.60/20,042,645.40 = 3,264,355.60/x
  3. Step 3: Cross multiply
    13,361,827.60x = 20,042,645.40 × 3,264,355.60
  4. Step 4: Simplify right side
    13,361,827.60x = 65,426,321,750,304.23
  5. Step 5: Solve for x
    x = 65,426,321,750,304.23/13,361,827.60
  6. Step 6: Final answer
    x = 4,896,509.95

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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.