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Finding the Fourth Proportional to 7,889.72, 10,888.14 and 4,532.48

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Solution

The fourth proportional to 7,889.72, 10,888.14 and 4,532.48 is: 6,255.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,889.72 : 10,888.14 = 4,532.48 : x
  2. Step 2: Convert to fraction form
    7,889.72/10,888.14 = 4,532.48/x
  3. Step 3: Cross multiply
    7,889.72x = 10,888.14 × 4,532.48
  4. Step 4: Simplify right side
    7,889.72x = 49,350,276.79
  5. Step 5: Solve for x
    x = 49,350,276.79/7,889.72
  6. Step 6: Final answer
    x = 6,255.01

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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.