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Finding the Fourth Proportional to 14,703.98, 20,279.76 and 9,673.40

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Solution

The fourth proportional to 14,703.98, 20,279.76 and 9,673.40 is: 13,341.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,703.98 : 20,279.76 = 9,673.40 : x
  2. Step 2: Convert to fraction form
    14,703.98/20,279.76 = 9,673.40/x
  3. Step 3: Cross multiply
    14,703.98x = 20,279.76 × 9,673.40
  4. Step 4: Simplify right side
    14,703.98x = 196,174,230.38
  5. Step 5: Solve for x
    x = 196,174,230.38/14,703.98
  6. Step 6: Final answer
    x = 13,341.57

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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.