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Finding the Fourth Proportional to 32,703.84, 45,137.52 and 18,558

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Solution

The fourth proportional to 32,703.84, 45,137.52 and 18,558 is: 25,613.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,703.84 : 45,137.52 = 18,558 : x
  2. Step 2: Convert to fraction form
    32,703.84/45,137.52 = 18,558/x
  3. Step 3: Cross multiply
    32,703.84x = 45,137.52 × 18,558
  4. Step 4: Simplify right side
    32,703.84x = 837,662,096.16
  5. Step 5: Solve for x
    x = 837,662,096.16/32,703.84
  6. Step 6: Final answer
    x = 25,613.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.