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Finding the Fourth Proportional to 9,312.36, 13,968.72 and 7,454.84

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Solution

The fourth proportional to 9,312.36, 13,968.72 and 7,454.84 is: 11,182.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,312.36 : 13,968.72 = 7,454.84 : x
  2. Step 2: Convert to fraction form
    9,312.36/13,968.72 = 7,454.84/x
  3. Step 3: Cross multiply
    9,312.36x = 13,968.72 × 7,454.84
  4. Step 4: Simplify right side
    9,312.36x = 104,134,572.60
  5. Step 5: Solve for x
    x = 104,134,572.60/9,312.36
  6. Step 6: Final answer
    x = 11,182.40

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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.