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Finding the Fourth Proportional to 30,068.56, 41,495.88 and 18,586

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Solution

The fourth proportional to 30,068.56, 41,495.88 and 18,586 is: 25,649.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,068.56 : 41,495.88 = 18,586 : x
  2. Step 2: Convert to fraction form
    30,068.56/41,495.88 = 18,586/x
  3. Step 3: Cross multiply
    30,068.56x = 41,495.88 × 18,586
  4. Step 4: Simplify right side
    30,068.56x = 771,242,425.68
  5. Step 5: Solve for x
    x = 771,242,425.68/30,068.56
  6. Step 6: Final answer
    x = 25,649.46

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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.