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Finding the Fourth Proportional to 39,897.90, 59,895.45 and 39,606.30

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Solution

The fourth proportional to 39,897.90, 59,895.45 and 39,606.30 is: 59,457.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,897.90 : 59,895.45 = 39,606.30 : x
  2. Step 2: Convert to fraction form
    39,897.90/59,895.45 = 39,606.30/x
  3. Step 3: Cross multiply
    39,897.90x = 59,895.45 × 39,606.30
  4. Step 4: Simplify right side
    39,897.90x = 2,372,237,161.34
  5. Step 5: Solve for x
    x = 2,372,237,161.34/39,897.90
  6. Step 6: Final answer
    x = 59,457.69

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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.