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Finding the Fourth Proportional to 10,783.70, 14,881.62 and 5,938.98

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Solution

The fourth proportional to 10,783.70, 14,881.62 and 5,938.98 is: 8,195.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,783.70 : 14,881.62 = 5,938.98 : x
  2. Step 2: Convert to fraction form
    10,783.70/14,881.62 = 5,938.98/x
  3. Step 3: Cross multiply
    10,783.70x = 14,881.62 × 5,938.98
  4. Step 4: Simplify right side
    10,783.70x = 88,381,643.55
  5. Step 5: Solve for x
    x = 88,381,643.55/10,783.70
  6. Step 6: Final answer
    x = 8,195.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.