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Finding the Fourth Proportional to 7,869.48, 10,858.92 and 4,332.48

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Solution

The fourth proportional to 7,869.48, 10,858.92 and 4,332.48 is: 5,978.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,869.48 : 10,858.92 = 4,332.48 : x
  2. Step 2: Convert to fraction form
    7,869.48/10,858.92 = 4,332.48/x
  3. Step 3: Cross multiply
    7,869.48x = 10,858.92 × 4,332.48
  4. Step 4: Simplify right side
    7,869.48x = 47,046,053.72
  5. Step 5: Solve for x
    x = 47,046,053.72/7,869.48
  6. Step 6: Final answer
    x = 5,978.29

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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.