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Finding the Fourth Proportional to 5,253.76, 7,873.52 and 2,913.64

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Solution

The fourth proportional to 5,253.76, 7,873.52 and 2,913.64 is: 4,366.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,253.76 : 7,873.52 = 2,913.64 : x
  2. Step 2: Convert to fraction form
    5,253.76/7,873.52 = 2,913.64/x
  3. Step 3: Cross multiply
    5,253.76x = 7,873.52 × 2,913.64
  4. Step 4: Simplify right side
    5,253.76x = 22,940,602.81
  5. Step 5: Solve for x
    x = 22,940,602.81/5,253.76
  6. Step 6: Final answer
    x = 4,366.51

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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.