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Finding the Fourth Proportional to 30,668.86, 46,008.15 and 9,887.50

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Solution

The fourth proportional to 30,668.86, 46,008.15 and 9,887.50 is: 14,832.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,668.86 : 46,008.15 = 9,887.50 : x
  2. Step 2: Convert to fraction form
    30,668.86/46,008.15 = 9,887.50/x
  3. Step 3: Cross multiply
    30,668.86x = 46,008.15 × 9,887.50
  4. Step 4: Simplify right side
    30,668.86x = 454,905,583.13
  5. Step 5: Solve for x
    x = 454,905,583.13/30,668.86
  6. Step 6: Final answer
    x = 14,832.82

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.