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Finding the Fourth Proportional to 14,376.72, 19,841.84 and 8,713.72

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Solution

The fourth proportional to 14,376.72, 19,841.84 and 8,713.72 is: 12,026.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,376.72 : 19,841.84 = 8,713.72 : x
  2. Step 2: Convert to fraction form
    14,376.72/19,841.84 = 8,713.72/x
  3. Step 3: Cross multiply
    14,376.72x = 19,841.84 × 8,713.72
  4. Step 4: Simplify right side
    14,376.72x = 172,896,238.04
  5. Step 5: Solve for x
    x = 172,896,238.04/14,376.72
  6. Step 6: Final answer
    x = 12,026.13

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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.