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Finding the Fourth Proportional to 14,759.76, 20,374.16 and 10,812.23

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Solution

The fourth proportional to 14,759.76, 20,374.16 and 10,812.23 is: 14,925.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,759.76 : 20,374.16 = 10,812.23 : x
  2. Step 2: Convert to fraction form
    14,759.76/20,374.16 = 10,812.23/x
  3. Step 3: Cross multiply
    14,759.76x = 20,374.16 × 10,812.23
  4. Step 4: Simplify right side
    14,759.76x = 220,289,948.04
  5. Step 5: Solve for x
    x = 220,289,948.04/14,759.76
  6. Step 6: Final answer
    x = 14,925.04

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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.