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Finding the Fourth Proportional to 6,573.40, 9,071.40 and 3,921.04

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Solution

The fourth proportional to 6,573.40, 9,071.40 and 3,921.04 is: 5,411.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,573.40 : 9,071.40 = 3,921.04 : x
  2. Step 2: Convert to fraction form
    6,573.40/9,071.40 = 3,921.04/x
  3. Step 3: Cross multiply
    6,573.40x = 9,071.40 × 3,921.04
  4. Step 4: Simplify right side
    6,573.40x = 35,569,322.26
  5. Step 5: Solve for x
    x = 35,569,322.26/6,573.40
  6. Step 6: Final answer
    x = 5,411.10

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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.