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Finding the Fourth Proportional to 2,898.69, 4,313.17 and 2,888.97

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Solution

The fourth proportional to 2,898.69, 4,313.17 and 2,888.97 is: 4,298.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,898.69 : 4,313.17 = 2,888.97 : x
  2. Step 2: Convert to fraction form
    2,898.69/4,313.17 = 2,888.97/x
  3. Step 3: Cross multiply
    2,898.69x = 4,313.17 × 2,888.97
  4. Step 4: Simplify right side
    2,898.69x = 12,460,611.51
  5. Step 5: Solve for x
    x = 12,460,611.51/2,898.69
  6. Step 6: Final answer
    x = 4,298.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.