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Finding the Fourth Proportional to 4,953.60, 7,358.40 and 4,867.20

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Solution

The fourth proportional to 4,953.60, 7,358.40 and 4,867.20 is: 7,230.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,953.60 : 7,358.40 = 4,867.20 : x
  2. Step 2: Convert to fraction form
    4,953.60/7,358.40 = 4,867.20/x
  3. Step 3: Cross multiply
    4,953.60x = 7,358.40 × 4,867.20
  4. Step 4: Simplify right side
    4,953.60x = 35,814,804.48
  5. Step 5: Solve for x
    x = 35,814,804.48/4,953.60
  6. Step 6: Final answer
    x = 7,230.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.