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Finding the Fourth Proportional to 14,129.84, 19,501.87 and 9,349.88

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Solution

The fourth proportional to 14,129.84, 19,501.87 and 9,349.88 is: 12,904.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,129.84 : 19,501.87 = 9,349.88 : x
  2. Step 2: Convert to fraction form
    14,129.84/19,501.87 = 9,349.88/x
  3. Step 3: Cross multiply
    14,129.84x = 19,501.87 × 9,349.88
  4. Step 4: Simplify right side
    14,129.84x = 182,340,144.28
  5. Step 5: Solve for x
    x = 182,340,144.28/14,129.84
  6. Step 6: Final answer
    x = 12,904.61

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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.