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Finding the Fourth Proportional to 16,848,290.80, 25,272,436.20 and 12,866,978.80

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Solution

The fourth proportional to 16,848,290.80, 25,272,436.20 and 12,866,978.80 is: 19,300,468.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,848,290.80 : 25,272,436.20 = 12,866,978.80 : x
  2. Step 2: Convert to fraction form
    16,848,290.80/25,272,436.20 = 12,866,978.80/x
  3. Step 3: Cross multiply
    16,848,290.80x = 25,272,436.20 × 12,866,978.80
  4. Step 4: Simplify right side
    16,848,290.80x = 325,179,900,809,752.56
  5. Step 5: Solve for x
    x = 325,179,900,809,752.56/16,848,290.80
  6. Step 6: Final answer
    x = 19,300,468.20

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1.5x scale

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.