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Finding the Fourth Proportional to 19,518, 26,887.32 and 14,797.68

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Solution

The fourth proportional to 19,518, 26,887.32 and 14,797.68 is: 20,384.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,518 : 26,887.32 = 14,797.68 : x
  2. Step 2: Convert to fraction form
    19,518/26,887.32 = 14,797.68/x
  3. Step 3: Cross multiply
    19,518x = 26,887.32 × 14,797.68
  4. Step 4: Simplify right side
    19,518x = 397,869,957.42
  5. Step 5: Solve for x
    x = 397,869,957.42/19,518
  6. Step 6: Final answer
    x = 20,384.77

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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.