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Finding the Fourth Proportional to 5,651.60, 8,477.40 and 4,816.40

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Solution

The fourth proportional to 5,651.60, 8,477.40 and 4,816.40 is: 7,224.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,651.60 : 8,477.40 = 4,816.40 : x
  2. Step 2: Convert to fraction form
    5,651.60/8,477.40 = 4,816.40/x
  3. Step 3: Cross multiply
    5,651.60x = 8,477.40 × 4,816.40
  4. Step 4: Simplify right side
    5,651.60x = 40,830,549.36
  5. Step 5: Solve for x
    x = 40,830,549.36/5,651.60
  6. Step 6: Final answer
    x = 7,224.60

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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.