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Finding the Fourth Proportional to 75,892.18, 113,817.48 and 28,503.60

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Solution

The fourth proportional to 75,892.18, 113,817.48 and 28,503.60 is: 42,747.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,892.18 : 113,817.48 = 28,503.60 : x
  2. Step 2: Convert to fraction form
    75,892.18/113,817.48 = 28,503.60/x
  3. Step 3: Cross multiply
    75,892.18x = 113,817.48 × 28,503.60
  4. Step 4: Simplify right side
    75,892.18x = 3,244,208,590.06
  5. Step 5: Solve for x
    x = 3,244,208,590.06/75,892.18
  6. Step 6: Final answer
    x = 42,747.60

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1.5x scale

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.