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Finding the Fourth Proportional to 7,191.60, 10,784.04 and 5,014.32

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Solution

The fourth proportional to 7,191.60, 10,784.04 and 5,014.32 is: 7,519.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191.60 : 10,784.04 = 5,014.32 : x
  2. Step 2: Convert to fraction form
    7,191.60/10,784.04 = 5,014.32/x
  3. Step 3: Cross multiply
    7,191.60x = 10,784.04 × 5,014.32
  4. Step 4: Simplify right side
    7,191.60x = 54,074,627.45
  5. Step 5: Solve for x
    x = 54,074,627.45/7,191.60
  6. Step 6: Final answer
    x = 7,519.14

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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.