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Finding the Fourth Proportional to 13,658,698.40, 20,489,084.40 and 4,073,328.80

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Solution

The fourth proportional to 13,658,698.40, 20,489,084.40 and 4,073,328.80 is: 6,110,302.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,658,698.40 : 20,489,084.40 = 4,073,328.80 : x
  2. Step 2: Convert to fraction form
    13,658,698.40/20,489,084.40 = 4,073,328.80/x
  3. Step 3: Cross multiply
    13,658,698.40x = 20,489,084.40 × 4,073,328.80
  4. Step 4: Simplify right side
    13,658,698.40x = 83,458,777,572,150.70
  5. Step 5: Solve for x
    x = 83,458,777,572,150.70/13,658,698.40
  6. Step 6: Final answer
    x = 6,110,302.40

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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.