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Finding the Fourth Proportional to 31,329.53, 46,994.18 and 7,636.80

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Solution

The fourth proportional to 31,329.53, 46,994.18 and 7,636.80 is: 11,455.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,329.53 : 46,994.18 = 7,636.80 : x
  2. Step 2: Convert to fraction form
    31,329.53/46,994.18 = 7,636.80/x
  3. Step 3: Cross multiply
    31,329.53x = 46,994.18 × 7,636.80
  4. Step 4: Simplify right side
    31,329.53x = 358,885,115.64
  5. Step 5: Solve for x
    x = 358,885,115.64/31,329.53
  6. Step 6: Final answer
    x = 11,455.17

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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.