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Finding the Fourth Proportional to 9,078.11, 12,527.15 and 8,334.53

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Solution

The fourth proportional to 9,078.11, 12,527.15 and 8,334.53 is: 11,501.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,078.11 : 12,527.15 = 8,334.53 : x
  2. Step 2: Convert to fraction form
    9,078.11/12,527.15 = 8,334.53/x
  3. Step 3: Cross multiply
    9,078.11x = 12,527.15 × 8,334.53
  4. Step 4: Simplify right side
    9,078.11x = 104,407,803.18
  5. Step 5: Solve for x
    x = 104,407,803.18/9,078.11
  6. Step 6: Final answer
    x = 11,501.06

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Double scale
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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.