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Finding the Fourth Proportional to 39,145.66, 58,718.29 and 9,563.66

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Solution

The fourth proportional to 39,145.66, 58,718.29 and 9,563.66 is: 14,345.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,145.66 : 58,718.29 = 9,563.66 : x
  2. Step 2: Convert to fraction form
    39,145.66/58,718.29 = 9,563.66/x
  3. Step 3: Cross multiply
    39,145.66x = 58,718.29 × 9,563.66
  4. Step 4: Simplify right side
    39,145.66x = 561,561,761.34
  5. Step 5: Solve for x
    x = 561,561,761.34/39,145.66
  6. Step 6: Final answer
    x = 14,345.44

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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.