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Finding the Fourth Proportional to 7,651.68, 10,564.80 and 5,880.48

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Solution

The fourth proportional to 7,651.68, 10,564.80 and 5,880.48 is: 8,119.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,651.68 : 10,564.80 = 5,880.48 : x
  2. Step 2: Convert to fraction form
    7,651.68/10,564.80 = 5,880.48/x
  3. Step 3: Cross multiply
    7,651.68x = 10,564.80 × 5,880.48
  4. Step 4: Simplify right side
    7,651.68x = 62,126,095.10
  5. Step 5: Solve for x
    x = 62,126,095.10/7,651.68
  6. Step 6: Final answer
    x = 8,119.28

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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.