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Finding the Fourth Proportional to 5,807.28, 8,713.56 and 5,315.10

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Solution

The fourth proportional to 5,807.28, 8,713.56 and 5,315.10 is: 7,975.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,807.28 : 8,713.56 = 5,315.10 : x
  2. Step 2: Convert to fraction form
    5,807.28/8,713.56 = 5,315.10/x
  3. Step 3: Cross multiply
    5,807.28x = 8,713.56 × 5,315.10
  4. Step 4: Simplify right side
    5,807.28x = 46,313,442.76
  5. Step 5: Solve for x
    x = 46,313,442.76/5,807.28
  6. Step 6: Final answer
    x = 7,975.07

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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.