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Finding the Fourth Proportional to 7,347.69, 10,142.19 and 4,702.23

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Solution

The fourth proportional to 7,347.69, 10,142.19 and 4,702.23 is: 6,490.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,347.69 : 10,142.19 = 4,702.23 : x
  2. Step 2: Convert to fraction form
    7,347.69/10,142.19 = 4,702.23/x
  3. Step 3: Cross multiply
    7,347.69x = 10,142.19 × 4,702.23
  4. Step 4: Simplify right side
    7,347.69x = 47,690,910.08
  5. Step 5: Solve for x
    x = 47,690,910.08/7,347.69
  6. Step 6: Final answer
    x = 6,490.60

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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.