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Finding the Fourth Proportional to 9,913.80, 14,880.42 and 7,551.84

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Solution

The fourth proportional to 9,913.80, 14,880.42 and 7,551.84 is: 11,335.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,913.80 : 14,880.42 = 7,551.84 : x
  2. Step 2: Convert to fraction form
    9,913.80/14,880.42 = 7,551.84/x
  3. Step 3: Cross multiply
    9,913.80x = 14,880.42 × 7,551.84
  4. Step 4: Simplify right side
    9,913.80x = 112,374,550.97
  5. Step 5: Solve for x
    x = 112,374,550.97/9,913.80
  6. Step 6: Final answer
    x = 11,335.16

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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.