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Finding the Fourth Proportional to 14,106.60, 19,466.18 and 7,818.60

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Solution

The fourth proportional to 14,106.60, 19,466.18 and 7,818.60 is: 10,789.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,106.60 : 19,466.18 = 7,818.60 : x
  2. Step 2: Convert to fraction form
    14,106.60/19,466.18 = 7,818.60/x
  3. Step 3: Cross multiply
    14,106.60x = 19,466.18 × 7,818.60
  4. Step 4: Simplify right side
    14,106.60x = 152,198,274.95
  5. Step 5: Solve for x
    x = 152,198,274.95/14,106.60
  6. Step 6: Final answer
    x = 10,789.15

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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.