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Finding the Fourth Proportional to 16,851.76, 25,253.88 and 7,957.60

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Solution

The fourth proportional to 16,851.76, 25,253.88 and 7,957.60 is: 11,925.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,851.76 : 25,253.88 = 7,957.60 : x
  2. Step 2: Convert to fraction form
    16,851.76/25,253.88 = 7,957.60/x
  3. Step 3: Cross multiply
    16,851.76x = 25,253.88 × 7,957.60
  4. Step 4: Simplify right side
    16,851.76x = 200,960,275.49
  5. Step 5: Solve for x
    x = 200,960,275.49/16,851.76
  6. Step 6: Final answer
    x = 11,925.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.