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Finding the Fourth Proportional to 65,668.53, 98,503.35 and 28,226.01

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Solution

The fourth proportional to 65,668.53, 98,503.35 and 28,226.01 is: 42,339.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,668.53 : 98,503.35 = 28,226.01 : x
  2. Step 2: Convert to fraction form
    65,668.53/98,503.35 = 28,226.01/x
  3. Step 3: Cross multiply
    65,668.53x = 98,503.35 × 28,226.01
  4. Step 4: Simplify right side
    65,668.53x = 2,780,356,542.13
  5. Step 5: Solve for x
    x = 2,780,356,542.13/65,668.53
  6. Step 6: Final answer
    x = 42,339.25

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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.