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Finding the Fourth Proportional to 6,042.76, 8,339.04 and 3,390.42

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Solution

The fourth proportional to 6,042.76, 8,339.04 and 3,390.42 is: 4,678.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,042.76 : 8,339.04 = 3,390.42 : x
  2. Step 2: Convert to fraction form
    6,042.76/8,339.04 = 3,390.42/x
  3. Step 3: Cross multiply
    6,042.76x = 8,339.04 × 3,390.42
  4. Step 4: Simplify right side
    6,042.76x = 28,272,848.00
  5. Step 5: Solve for x
    x = 28,272,848.00/6,042.76
  6. Step 6: Final answer
    x = 4,678.80

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Half scale
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Double scale
Find fourth proportional to 6,043.76, 8,340.42 and 3,391.42
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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.