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Finding the Fourth Proportional to 16,668,907.60, 25,003,361.40 and 7,084,598.80

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Solution

The fourth proportional to 16,668,907.60, 25,003,361.40 and 7,084,598.80 is: 10,626,898.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,668,907.60 : 25,003,361.40 = 7,084,598.80 : x
  2. Step 2: Convert to fraction form
    16,668,907.60/25,003,361.40 = 7,084,598.80/x
  3. Step 3: Cross multiply
    16,668,907.60x = 25,003,361.40 × 7,084,598.80
  4. Step 4: Simplify right side
    16,668,907.60x = 177,138,784,170,406.31
  5. Step 5: Solve for x
    x = 177,138,784,170,406.31/16,668,907.60
  6. Step 6: Final answer
    x = 10,626,898.20

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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.