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Finding the Fourth Proportional to 9,362.57, 12,919.95 and 5,113.53

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Solution

The fourth proportional to 9,362.57, 12,919.95 and 5,113.53 is: 7,056.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,362.57 : 12,919.95 = 5,113.53 : x
  2. Step 2: Convert to fraction form
    9,362.57/12,919.95 = 5,113.53/x
  3. Step 3: Cross multiply
    9,362.57x = 12,919.95 × 5,113.53
  4. Step 4: Simplify right side
    9,362.57x = 66,066,551.92
  5. Step 5: Solve for x
    x = 66,066,551.92/9,362.57
  6. Step 6: Final answer
    x = 7,056.46

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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.