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Finding the Fourth Proportional to 10,959.16, 16,439.65 and 4,719.33

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Solution

The fourth proportional to 10,959.16, 16,439.65 and 4,719.33 is: 7,079.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,959.16 : 16,439.65 = 4,719.33 : x
  2. Step 2: Convert to fraction form
    10,959.16/16,439.65 = 4,719.33/x
  3. Step 3: Cross multiply
    10,959.16x = 16,439.65 × 4,719.33
  4. Step 4: Simplify right side
    10,959.16x = 77,584,051.24
  5. Step 5: Solve for x
    x = 77,584,051.24/10,959.16
  6. Step 6: Final answer
    x = 7,079.38

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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.