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Finding the Fourth Proportional to 14,613.70, 21,920.55 and 9,364.90

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Solution

The fourth proportional to 14,613.70, 21,920.55 and 9,364.90 is: 14,047.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,613.70 : 21,920.55 = 9,364.90 : x
  2. Step 2: Convert to fraction form
    14,613.70/21,920.55 = 9,364.90/x
  3. Step 3: Cross multiply
    14,613.70x = 21,920.55 × 9,364.90
  4. Step 4: Simplify right side
    14,613.70x = 205,283,758.70
  5. Step 5: Solve for x
    x = 205,283,758.70/14,613.70
  6. Step 6: Final answer
    x = 14,047.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.