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Finding the Fourth Proportional to 10,352.80, 15,527.80 and 4,117.40

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Solution

The fourth proportional to 10,352.80, 15,527.80 and 4,117.40 is: 6,175.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,352.80 : 15,527.80 = 4,117.40 : x
  2. Step 2: Convert to fraction form
    10,352.80/15,527.80 = 4,117.40/x
  3. Step 3: Cross multiply
    10,352.80x = 15,527.80 × 4,117.40
  4. Step 4: Simplify right side
    10,352.80x = 63,934,163.72
  5. Step 5: Solve for x
    x = 63,934,163.72/10,352.80
  6. Step 6: Final answer
    x = 6,175.54

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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.