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Finding the Fourth Proportional to 7,869.13, 10,835.98 and 7,694.51

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Solution

The fourth proportional to 7,869.13, 10,835.98 and 7,694.51 is: 10,595.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.13 : 10,835.98 = 7,694.51 : x
  2. Step 2: Convert to fraction form
    7,869.13/10,835.98 = 7,694.51/x
  3. Step 3: Cross multiply
    7,869.13x = 10,835.98 × 7,694.51
  4. Step 4: Simplify right side
    7,869.13x = 83,377,483.05
  5. Step 5: Solve for x
    x = 83,377,483.05/7,869.13
  6. Step 6: Final answer
    x = 10,595.52

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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.