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Finding the Fourth Proportional to 31,045.51, 46,570.04 and 8,857.18

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Solution

The fourth proportional to 31,045.51, 46,570.04 and 8,857.18 is: 13,286.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,045.51 : 46,570.04 = 8,857.18 : x
  2. Step 2: Convert to fraction form
    31,045.51/46,570.04 = 8,857.18/x
  3. Step 3: Cross multiply
    31,045.51x = 46,570.04 × 8,857.18
  4. Step 4: Simplify right side
    31,045.51x = 412,479,274.03
  5. Step 5: Solve for x
    x = 412,479,274.03/31,045.51
  6. Step 6: Final answer
    x = 13,286.28

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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.