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Finding the Fourth Proportional to 44,478.86, 66,728.88 and 14,492.93

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Solution

The fourth proportional to 44,478.86, 66,728.88 and 14,492.93 is: 21,742.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,478.86 : 66,728.88 = 14,492.93 : x
  2. Step 2: Convert to fraction form
    44,478.86/66,728.88 = 14,492.93/x
  3. Step 3: Cross multiply
    44,478.86x = 66,728.88 × 14,492.93
  4. Step 4: Simplify right side
    44,478.86x = 967,096,653.17
  5. Step 5: Solve for x
    x = 967,096,653.17/44,478.86
  6. Step 6: Final answer
    x = 21,742.84

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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.