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Finding the Fourth Proportional to 14,448.60, 19,938.60 and 8,859.60

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Solution

The fourth proportional to 14,448.60, 19,938.60 and 8,859.60 is: 12,225.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,448.60 : 19,938.60 = 8,859.60 : x
  2. Step 2: Convert to fraction form
    14,448.60/19,938.60 = 8,859.60/x
  3. Step 3: Cross multiply
    14,448.60x = 19,938.60 × 8,859.60
  4. Step 4: Simplify right side
    14,448.60x = 176,648,020.56
  5. Step 5: Solve for x
    x = 176,648,020.56/14,448.60
  6. Step 6: Final answer
    x = 12,225.96

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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.