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Finding the Fourth Proportional to 7,613.51, 10,509.88 and 4,630.30

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Solution

The fourth proportional to 7,613.51, 10,509.88 and 4,630.30 is: 6,391.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,613.51 : 10,509.88 = 4,630.30 : x
  2. Step 2: Convert to fraction form
    7,613.51/10,509.88 = 4,630.30/x
  3. Step 3: Cross multiply
    7,613.51x = 10,509.88 × 4,630.30
  4. Step 4: Simplify right side
    7,613.51x = 48,663,897.36
  5. Step 5: Solve for x
    x = 48,663,897.36/7,613.51
  6. Step 6: Final answer
    x = 6,391.78

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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.