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Finding the Fourth Proportional to 31,085.52, 46,628.02 and 18,609.01

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Solution

The fourth proportional to 31,085.52, 46,628.02 and 18,609.01 is: 27,913.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,085.52 : 46,628.02 = 18,609.01 : x
  2. Step 2: Convert to fraction form
    31,085.52/46,628.02 = 18,609.01/x
  3. Step 3: Cross multiply
    31,085.52x = 46,628.02 × 18,609.01
  4. Step 4: Simplify right side
    31,085.52x = 867,701,290.46
  5. Step 5: Solve for x
    x = 867,701,290.46/31,085.52
  6. Step 6: Final answer
    x = 27,913.36

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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.