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Finding the Fourth Proportional to 9,799.20, 13,701.60 and 9,799.20

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Solution

The fourth proportional to 9,799.20, 13,701.60 and 9,799.20 is: 13,701.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,799.20 : 13,701.60 = 9,799.20 : x
  2. Step 2: Convert to fraction form
    9,799.20/13,701.60 = 9,799.20/x
  3. Step 3: Cross multiply
    9,799.20x = 13,701.60 × 9,799.20
  4. Step 4: Simplify right side
    9,799.20x = 134,264,718.72
  5. Step 5: Solve for x
    x = 134,264,718.72/9,799.20
  6. Step 6: Final answer
    x = 13,701.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.