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Finding the Fourth Proportional to 40,985,537.80, 61,478,306.70 and 10,693,400.80

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Solution

The fourth proportional to 40,985,537.80, 61,478,306.70 and 10,693,400.80 is: 16,040,101.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,985,537.80 : 61,478,306.70 = 10,693,400.80 : x
  2. Step 2: Convert to fraction form
    40,985,537.80/61,478,306.70 = 10,693,400.80/x
  3. Step 3: Cross multiply
    40,985,537.80x = 61,478,306.70 × 10,693,400.80
  4. Step 4: Simplify right side
    40,985,537.80x = 657,412,174,048,425.50
  5. Step 5: Solve for x
    x = 657,412,174,048,425.50/40,985,537.80
  6. Step 6: Final answer
    x = 16,040,101.20

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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.