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Finding the Fourth Proportional to 14,408.73, 19,887.81 and 9,386.73

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Solution

The fourth proportional to 14,408.73, 19,887.81 and 9,386.73 is: 12,956.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,408.73 : 19,887.81 = 9,386.73 : x
  2. Step 2: Convert to fraction form
    14,408.73/19,887.81 = 9,386.73/x
  3. Step 3: Cross multiply
    14,408.73x = 19,887.81 × 9,386.73
  4. Step 4: Simplify right side
    14,408.73x = 186,681,502.76
  5. Step 5: Solve for x
    x = 186,681,502.76/14,408.73
  6. Step 6: Final answer
    x = 12,956.14

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Double scale
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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.