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Finding the Fourth Proportional to 7,232.40, 9,980.78 and 4,248.26

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Solution

The fourth proportional to 7,232.40, 9,980.78 and 4,248.26 is: 5,862.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,232.40 : 9,980.78 = 4,248.26 : x
  2. Step 2: Convert to fraction form
    7,232.40/9,980.78 = 4,248.26/x
  3. Step 3: Cross multiply
    7,232.40x = 9,980.78 × 4,248.26
  4. Step 4: Simplify right side
    7,232.40x = 42,400,948.44
  5. Step 5: Solve for x
    x = 42,400,948.44/7,232.40
  6. Step 6: Final answer
    x = 5,862.64

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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.