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Finding the Fourth Proportional to 17,883,605.80, 26,828,907.90 and 7,648,445.80

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Solution

The fourth proportional to 17,883,605.80, 26,828,907.90 and 7,648,445.80 is: 11,474,165.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,883,605.80 : 26,828,907.90 = 7,648,445.80 : x
  2. Step 2: Convert to fraction form
    17,883,605.80/26,828,907.90 = 7,648,445.80/x
  3. Step 3: Cross multiply
    17,883,605.80x = 26,828,907.90 × 7,648,445.80
  4. Step 4: Simplify right side
    17,883,605.80x = 205,199,447,946,341.81
  5. Step 5: Solve for x
    x = 205,199,447,946,341.81/17,883,605.80
  6. Step 6: Final answer
    x = 11,474,165.23

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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.