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Finding the Fourth Proportional to 5,741.70, 8,612.55 and 4,877.70

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Solution

The fourth proportional to 5,741.70, 8,612.55 and 4,877.70 is: 7,316.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,741.70 : 8,612.55 = 4,877.70 : x
  2. Step 2: Convert to fraction form
    5,741.70/8,612.55 = 4,877.70/x
  3. Step 3: Cross multiply
    5,741.70x = 8,612.55 × 4,877.70
  4. Step 4: Simplify right side
    5,741.70x = 42,009,435.14
  5. Step 5: Solve for x
    x = 42,009,435.14/5,741.70
  6. Step 6: Final answer
    x = 7,316.55

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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.