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Finding the Fourth Proportional to 9,798.64, 13,522 and 5,322.32

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Solution

The fourth proportional to 9,798.64, 13,522 and 5,322.32 is: 7,344.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,798.64 : 13,522 = 5,322.32 : x
  2. Step 2: Convert to fraction form
    9,798.64/13,522 = 5,322.32/x
  3. Step 3: Cross multiply
    9,798.64x = 13,522 × 5,322.32
  4. Step 4: Simplify right side
    9,798.64x = 71,968,411.04
  5. Step 5: Solve for x
    x = 71,968,411.04/9,798.64
  6. Step 6: Final answer
    x = 7,344.73

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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.