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Finding the Fourth Proportional to 8,523.39, 11,762.26 and 4,985.91

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Solution

The fourth proportional to 8,523.39, 11,762.26 and 4,985.91 is: 6,880.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,523.39 : 11,762.26 = 4,985.91 : x
  2. Step 2: Convert to fraction form
    8,523.39/11,762.26 = 4,985.91/x
  3. Step 3: Cross multiply
    8,523.39x = 11,762.26 × 4,985.91
  4. Step 4: Simplify right side
    8,523.39x = 58,645,569.76
  5. Step 5: Solve for x
    x = 58,645,569.76/8,523.39
  6. Step 6: Final answer
    x = 6,880.55

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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.