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Finding the Fourth Proportional to 18,473.50, 27,710.13 and 4,622.50

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Solution

The fourth proportional to 18,473.50, 27,710.13 and 4,622.50 is: 6,933.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,473.50 : 27,710.13 = 4,622.50 : x
  2. Step 2: Convert to fraction form
    18,473.50/27,710.13 = 4,622.50/x
  3. Step 3: Cross multiply
    18,473.50x = 27,710.13 × 4,622.50
  4. Step 4: Simplify right side
    18,473.50x = 128,090,075.93
  5. Step 5: Solve for x
    x = 128,090,075.93/18,473.50
  6. Step 6: Final answer
    x = 6,933.72

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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.