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Finding the Fourth Proportional to 9,884.79, 14,803.18 and 5,435.66

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Solution

The fourth proportional to 9,884.79, 14,803.18 and 5,435.66 is: 8,140.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,884.79 : 14,803.18 = 5,435.66 : x
  2. Step 2: Convert to fraction form
    9,884.79/14,803.18 = 5,435.66/x
  3. Step 3: Cross multiply
    9,884.79x = 14,803.18 × 5,435.66
  4. Step 4: Simplify right side
    9,884.79x = 80,465,053.40
  5. Step 5: Solve for x
    x = 80,465,053.40/9,884.79
  6. Step 6: Final answer
    x = 8,140.29

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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.