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Finding the Fourth Proportional to 5,387.53, 7,426.32 and 4,935.55

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Solution

The fourth proportional to 5,387.53, 7,426.32 and 4,935.55 is: 6,803.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,387.53 : 7,426.32 = 4,935.55 : x
  2. Step 2: Convert to fraction form
    5,387.53/7,426.32 = 4,935.55/x
  3. Step 3: Cross multiply
    5,387.53x = 7,426.32 × 4,935.55
  4. Step 4: Simplify right side
    5,387.53x = 36,652,973.68
  5. Step 5: Solve for x
    x = 36,652,973.68/5,387.53
  6. Step 6: Final answer
    x = 6,803.30

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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.