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Finding the Fourth Proportional to 7,316.16, 10,933.95 and 5,345.90

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Solution

The fourth proportional to 7,316.16, 10,933.95 and 5,345.90 is: 7,989.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,316.16 : 10,933.95 = 5,345.90 : x
  2. Step 2: Convert to fraction form
    7,316.16/10,933.95 = 5,345.90/x
  3. Step 3: Cross multiply
    7,316.16x = 10,933.95 × 5,345.90
  4. Step 4: Simplify right side
    7,316.16x = 58,451,809.68
  5. Step 5: Solve for x
    x = 58,451,809.68/7,316.16
  6. Step 6: Final answer
    x = 7,989.42

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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.