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Finding the Fourth Proportional to 7,482.25, 10,326.23 and 4,170.25

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Solution

The fourth proportional to 7,482.25, 10,326.23 and 4,170.25 is: 5,755.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,482.25 : 10,326.23 = 4,170.25 : x
  2. Step 2: Convert to fraction form
    7,482.25/10,326.23 = 4,170.25/x
  3. Step 3: Cross multiply
    7,482.25x = 10,326.23 × 4,170.25
  4. Step 4: Simplify right side
    7,482.25x = 43,062,960.66
  5. Step 5: Solve for x
    x = 43,062,960.66/7,482.25
  6. Step 6: Final answer
    x = 5,755.35

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Double scale
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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.