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Finding the Fourth Proportional to 7,959.56, 10,985.01 and 4,423.91

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Solution

The fourth proportional to 7,959.56, 10,985.01 and 4,423.91 is: 6,105.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,959.56 : 10,985.01 = 4,423.91 : x
  2. Step 2: Convert to fraction form
    7,959.56/10,985.01 = 4,423.91/x
  3. Step 3: Cross multiply
    7,959.56x = 10,985.01 × 4,423.91
  4. Step 4: Simplify right side
    7,959.56x = 48,596,695.59
  5. Step 5: Solve for x
    x = 48,596,695.59/7,959.56
  6. Step 6: Final answer
    x = 6,105.45

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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.