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Finding the Fourth Proportional to 14,838.41, 20,477.01 and 8,124.46

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Solution

The fourth proportional to 14,838.41, 20,477.01 and 8,124.46 is: 11,211.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,838.41 : 20,477.01 = 8,124.46 : x
  2. Step 2: Convert to fraction form
    14,838.41/20,477.01 = 8,124.46/x
  3. Step 3: Cross multiply
    14,838.41x = 20,477.01 × 8,124.46
  4. Step 4: Simplify right side
    14,838.41x = 166,364,597.47
  5. Step 5: Solve for x
    x = 166,364,597.47/14,838.41
  6. Step 6: Final answer
    x = 11,211.75

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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.