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Finding the Fourth Proportional to 5,365.60, 7,404.98 and 2,976.16

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Solution

The fourth proportional to 5,365.60, 7,404.98 and 2,976.16 is: 4,107.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,365.60 : 7,404.98 = 2,976.16 : x
  2. Step 2: Convert to fraction form
    5,365.60/7,404.98 = 2,976.16/x
  3. Step 3: Cross multiply
    5,365.60x = 7,404.98 × 2,976.16
  4. Step 4: Simplify right side
    5,365.60x = 22,038,405.28
  5. Step 5: Solve for x
    x = 22,038,405.28/5,365.60
  6. Step 6: Final answer
    x = 4,107.35

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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.