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Finding the Fourth Proportional to 2,898.51, 4,000.94 and 1,953.71

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Solution

The fourth proportional to 2,898.51, 4,000.94 and 1,953.71 is: 2,696.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,898.51 : 4,000.94 = 1,953.71 : x
  2. Step 2: Convert to fraction form
    2,898.51/4,000.94 = 1,953.71/x
  3. Step 3: Cross multiply
    2,898.51x = 4,000.94 × 1,953.71
  4. Step 4: Simplify right side
    2,898.51x = 7,816,646.71
  5. Step 5: Solve for x
    x = 7,816,646.71/2,898.51
  6. Step 6: Final answer
    x = 2,696.78

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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.