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Finding the Fourth Proportional to 86,002.77, 118,685.21 and 48,276.21

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Solution

The fourth proportional to 86,002.77, 118,685.21 and 48,276.21 is: 66,621.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,002.77 : 118,685.21 = 48,276.21 : x
  2. Step 2: Convert to fraction form
    86,002.77/118,685.21 = 48,276.21/x
  3. Step 3: Cross multiply
    86,002.77x = 118,685.21 × 48,276.21
  4. Step 4: Simplify right side
    86,002.77x = 5,729,671,880.47
  5. Step 5: Solve for x
    x = 5,729,671,880.47/86,002.77
  6. Step 6: Final answer
    x = 66,621.95

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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.