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Finding the Fourth Proportional to 45,408.60, 63,637.65 and 45,408.60

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Solution

The fourth proportional to 45,408.60, 63,637.65 and 45,408.60 is: 63,637.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,408.60 : 63,637.65 = 45,408.60 : x
  2. Step 2: Convert to fraction form
    45,408.60/63,637.65 = 45,408.60/x
  3. Step 3: Cross multiply
    45,408.60x = 63,637.65 × 45,408.60
  4. Step 4: Simplify right side
    45,408.60x = 2,889,696,593.79
  5. Step 5: Solve for x
    x = 2,889,696,593.79/45,408.60
  6. Step 6: Final answer
    x = 63,637.65

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.