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Finding the Fourth Proportional to 14,411.87, 19,885.35 and 8,749.59

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Solution

The fourth proportional to 14,411.87, 19,885.35 and 8,749.59 is: 12,072.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,411.87 : 19,885.35 = 8,749.59 : x
  2. Step 2: Convert to fraction form
    14,411.87/19,885.35 = 8,749.59/x
  3. Step 3: Cross multiply
    14,411.87x = 19,885.35 × 8,749.59
  4. Step 4: Simplify right side
    14,411.87x = 173,988,615.76
  5. Step 5: Solve for x
    x = 173,988,615.76/14,411.87
  6. Step 6: Final answer
    x = 12,072.60

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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.