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Finding the Fourth Proportional to 67,588.50, 101,382.93 and 18,340.50

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Solution

The fourth proportional to 67,588.50, 101,382.93 and 18,340.50 is: 27,510.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,588.50 : 101,382.93 = 18,340.50 : x
  2. Step 2: Convert to fraction form
    67,588.50/101,382.93 = 18,340.50/x
  3. Step 3: Cross multiply
    67,588.50x = 101,382.93 × 18,340.50
  4. Step 4: Simplify right side
    67,588.50x = 1,859,413,627.67
  5. Step 5: Solve for x
    x = 1,859,413,627.67/67,588.50
  6. Step 6: Final answer
    x = 27,510.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.