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Finding the Fourth Proportional to 14,935.84, 20,609.76 and 8,647.04

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Solution

The fourth proportional to 14,935.84, 20,609.76 and 8,647.04 is: 11,931.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,935.84 : 20,609.76 = 8,647.04 : x
  2. Step 2: Convert to fraction form
    14,935.84/20,609.76 = 8,647.04/x
  3. Step 3: Cross multiply
    14,935.84x = 20,609.76 × 8,647.04
  4. Step 4: Simplify right side
    14,935.84x = 178,213,419.11
  5. Step 5: Solve for x
    x = 178,213,419.11/14,935.84
  6. Step 6: Final answer
    x = 11,931.93

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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.