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Finding the Fourth Proportional to 37,985,918.40, 56,978,877.60 and 11,060,452.80

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Solution

The fourth proportional to 37,985,918.40, 56,978,877.60 and 11,060,452.80 is: 16,590,679.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,985,918.40 : 56,978,877.60 = 11,060,452.80 : x
  2. Step 2: Convert to fraction form
    37,985,918.40/56,978,877.60 = 11,060,452.80/x
  3. Step 3: Cross multiply
    37,985,918.40x = 56,978,877.60 × 11,060,452.80
  4. Step 4: Simplify right side
    37,985,918.40x = 630,212,186,291,777.38
  5. Step 5: Solve for x
    x = 630,212,186,291,777.38/37,985,918.40
  6. Step 6: Final answer
    x = 16,590,679.20

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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.