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Finding the Fourth Proportional to 14,354.57, 19,808.60 and 8,386.49

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Solution

The fourth proportional to 14,354.57, 19,808.60 and 8,386.49 is: 11,572.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,354.57 : 19,808.60 = 8,386.49 : x
  2. Step 2: Convert to fraction form
    14,354.57/19,808.60 = 8,386.49/x
  3. Step 3: Cross multiply
    14,354.57x = 19,808.60 × 8,386.49
  4. Step 4: Simplify right side
    14,354.57x = 166,124,484.84
  5. Step 5: Solve for x
    x = 166,124,484.84/14,354.57
  6. Step 6: Final answer
    x = 11,572.94

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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.