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Finding the Fourth Proportional to 14,274.15, 19,717.15 and 10,957.95

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Solution

The fourth proportional to 14,274.15, 19,717.15 and 10,957.95 is: 15,136.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,274.15 : 19,717.15 = 10,957.95 : x
  2. Step 2: Convert to fraction form
    14,274.15/19,717.15 = 10,957.95/x
  3. Step 3: Cross multiply
    14,274.15x = 19,717.15 × 10,957.95
  4. Step 4: Simplify right side
    14,274.15x = 216,059,445.26
  5. Step 5: Solve for x
    x = 216,059,445.26/14,274.15
  6. Step 6: Final answer
    x = 15,136.41

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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.