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Finding the Fourth Proportional to 6,307.43, 8,702.47 and 4,068.45

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Solution

The fourth proportional to 6,307.43, 8,702.47 and 4,068.45 is: 5,613.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,307.43 : 8,702.47 = 4,068.45 : x
  2. Step 2: Convert to fraction form
    6,307.43/8,702.47 = 4,068.45/x
  3. Step 3: Cross multiply
    6,307.43x = 8,702.47 × 4,068.45
  4. Step 4: Simplify right side
    6,307.43x = 35,405,569.16
  5. Step 5: Solve for x
    x = 35,405,569.16/6,307.43
  6. Step 6: Final answer
    x = 5,613.32

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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.