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Finding the Fourth Proportional to 31,302.58, 46,955.58 and 7,929.22

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Solution

The fourth proportional to 31,302.58, 46,955.58 and 7,929.22 is: 11,894.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,302.58 : 46,955.58 = 7,929.22 : x
  2. Step 2: Convert to fraction form
    31,302.58/46,955.58 = 7,929.22/x
  3. Step 3: Cross multiply
    31,302.58x = 46,955.58 × 7,929.22
  4. Step 4: Simplify right side
    31,302.58x = 372,321,124.05
  5. Step 5: Solve for x
    x = 372,321,124.05/31,302.58
  6. Step 6: Final answer
    x = 11,894.26

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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.