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Finding the Fourth Proportional to 19,283.46, 28,925.13 and 5,432.46

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Solution

The fourth proportional to 19,283.46, 28,925.13 and 5,432.46 is: 8,148.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,283.46 : 28,925.13 = 5,432.46 : x
  2. Step 2: Convert to fraction form
    19,283.46/28,925.13 = 5,432.46/x
  3. Step 3: Cross multiply
    19,283.46x = 28,925.13 × 5,432.46
  4. Step 4: Simplify right side
    19,283.46x = 157,134,611.72
  5. Step 5: Solve for x
    x = 157,134,611.72/19,283.46
  6. Step 6: Final answer
    x = 8,148.67

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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.