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Finding the Fourth Proportional to 64,369.92, 96,530.58 and 31,078.92

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Solution

The fourth proportional to 64,369.92, 96,530.58 and 31,078.92 is: 46,606.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,369.92 : 96,530.58 = 31,078.92 : x
  2. Step 2: Convert to fraction form
    64,369.92/96,530.58 = 31,078.92/x
  3. Step 3: Cross multiply
    64,369.92x = 96,530.58 × 31,078.92
  4. Step 4: Simplify right side
    64,369.92x = 3,000,066,173.37
  5. Step 5: Solve for x
    x = 3,000,066,173.37/64,369.92
  6. Step 6: Final answer
    x = 46,606.65

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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.