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Finding the Fourth Proportional to 65,312.02, 90,004.21 and 44,054.38

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Solution

The fourth proportional to 65,312.02, 90,004.21 and 44,054.38 is: 60,709.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,312.02 : 90,004.21 = 44,054.38 : x
  2. Step 2: Convert to fraction form
    65,312.02/90,004.21 = 44,054.38/x
  3. Step 3: Cross multiply
    65,312.02x = 90,004.21 × 44,054.38
  4. Step 4: Simplify right side
    65,312.02x = 3,965,079,668.94
  5. Step 5: Solve for x
    x = 3,965,079,668.94/65,312.02
  6. Step 6: Final answer
    x = 60,709.80

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1.5x scale

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.