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Finding the Fourth Proportional to 14,017.96, 19,343.96 and 8,712.72

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Solution

The fourth proportional to 14,017.96, 19,343.96 and 8,712.72 is: 12,023.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,017.96 : 19,343.96 = 8,712.72 : x
  2. Step 2: Convert to fraction form
    14,017.96/19,343.96 = 8,712.72/x
  3. Step 3: Cross multiply
    14,017.96x = 19,343.96 × 8,712.72
  4. Step 4: Simplify right side
    14,017.96x = 168,538,507.17
  5. Step 5: Solve for x
    x = 168,538,507.17/14,017.96
  6. Step 6: Final answer
    x = 12,023.04

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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.