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Finding the Fourth Proportional to 18,710.69, 28,068.77 and 6,701.93

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Solution

The fourth proportional to 18,710.69, 28,068.77 and 6,701.93 is: 10,053.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,710.69 : 28,068.77 = 6,701.93 : x
  2. Step 2: Convert to fraction form
    18,710.69/28,068.77 = 6,701.93/x
  3. Step 3: Cross multiply
    18,710.69x = 28,068.77 × 6,701.93
  4. Step 4: Simplify right side
    18,710.69x = 188,114,808.14
  5. Step 5: Solve for x
    x = 188,114,808.14/18,710.69
  6. Step 6: Final answer
    x = 10,053.87

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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.