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Finding the Fourth Proportional to 4,840.12, 6,713.53 and 4,712.05

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Solution

The fourth proportional to 4,840.12, 6,713.53 and 4,712.05 is: 6,535.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,840.12 : 6,713.53 = 4,712.05 : x
  2. Step 2: Convert to fraction form
    4,840.12/6,713.53 = 4,712.05/x
  3. Step 3: Cross multiply
    4,840.12x = 6,713.53 × 4,712.05
  4. Step 4: Simplify right side
    4,840.12x = 31,634,489.04
  5. Step 5: Solve for x
    x = 31,634,489.04/4,840.12
  6. Step 6: Final answer
    x = 6,535.89

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Half scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.