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Finding the Fourth Proportional to 42,365.94, 63,448.70 and 36,788.99

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Solution

The fourth proportional to 42,365.94, 63,448.70 and 36,788.99 is: 55,096.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,365.94 : 63,448.70 = 36,788.99 : x
  2. Step 2: Convert to fraction form
    42,365.94/63,448.70 = 36,788.99/x
  3. Step 3: Cross multiply
    42,365.94x = 63,448.70 × 36,788.99
  4. Step 4: Simplify right side
    42,365.94x = 2,334,213,088.62
  5. Step 5: Solve for x
    x = 2,334,213,088.62/42,365.94
  6. Step 6: Final answer
    x = 55,096.46

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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.