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Finding the Fourth Proportional to 65,115.36, 97,668.72 and 38,982.24

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Solution

The fourth proportional to 65,115.36, 97,668.72 and 38,982.24 is: 58,470.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,115.36 : 97,668.72 = 38,982.24 : x
  2. Step 2: Convert to fraction form
    65,115.36/97,668.72 = 38,982.24/x
  3. Step 3: Cross multiply
    65,115.36x = 97,668.72 × 38,982.24
  4. Step 4: Simplify right side
    65,115.36x = 3,807,345,483.53
  5. Step 5: Solve for x
    x = 3,807,345,483.53/65,115.36
  6. Step 6: Final answer
    x = 58,470.77

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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.