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Finding the Fourth Proportional to 86,646.88, 119,571.39 and 48,406.98

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Solution

The fourth proportional to 86,646.88, 119,571.39 and 48,406.98 is: 66,800.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,646.88 : 119,571.39 = 48,406.98 : x
  2. Step 2: Convert to fraction form
    86,646.88/119,571.39 = 48,406.98/x
  3. Step 3: Cross multiply
    86,646.88x = 119,571.39 × 48,406.98
  4. Step 4: Simplify right side
    86,646.88x = 5,788,090,332.69
  5. Step 5: Solve for x
    x = 5,788,090,332.69/86,646.88
  6. Step 6: Final answer
    x = 66,800.91

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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.