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Finding the Fourth Proportional to 14,838.53, 20,477.40 and 8,124.04

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Solution

The fourth proportional to 14,838.53, 20,477.40 and 8,124.04 is: 11,211.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,838.53 : 20,477.40 = 8,124.04 : x
  2. Step 2: Convert to fraction form
    14,838.53/20,477.40 = 8,124.04/x
  3. Step 3: Cross multiply
    14,838.53x = 20,477.40 × 8,124.04
  4. Step 4: Simplify right side
    14,838.53x = 166,359,114.31
  5. Step 5: Solve for x
    x = 166,359,114.31/14,838.53
  6. Step 6: Final answer
    x = 11,211.30

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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.