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Finding the Fourth Proportional to 6,530.56, 8,993.92 and 5,416.32

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Solution

The fourth proportional to 6,530.56, 8,993.92 and 5,416.32 is: 7,459.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,530.56 : 8,993.92 = 5,416.32 : x
  2. Step 2: Convert to fraction form
    6,530.56/8,993.92 = 5,416.32/x
  3. Step 3: Cross multiply
    6,530.56x = 8,993.92 × 5,416.32
  4. Step 4: Simplify right side
    6,530.56x = 48,713,948.77
  5. Step 5: Solve for x
    x = 48,713,948.77/6,530.56
  6. Step 6: Final answer
    x = 7,459.38

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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.