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Finding the Fourth Proportional to 6,482.10, 9,723.15 and 5,186.10

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Solution

The fourth proportional to 6,482.10, 9,723.15 and 5,186.10 is: 7,779.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,482.10 : 9,723.15 = 5,186.10 : x
  2. Step 2: Convert to fraction form
    6,482.10/9,723.15 = 5,186.10/x
  3. Step 3: Cross multiply
    6,482.10x = 9,723.15 × 5,186.10
  4. Step 4: Simplify right side
    6,482.10x = 50,425,228.22
  5. Step 5: Solve for x
    x = 50,425,228.22/6,482.10
  6. Step 6: Final answer
    x = 7,779.15

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.