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Finding the Fourth Proportional to 63,706.80, 95,531.40 and 28,628.40

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Solution

The fourth proportional to 63,706.80, 95,531.40 and 28,628.40 is: 42,929.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,706.80 : 95,531.40 = 28,628.40 : x
  2. Step 2: Convert to fraction form
    63,706.80/95,531.40 = 28,628.40/x
  3. Step 3: Cross multiply
    63,706.80x = 95,531.40 × 28,628.40
  4. Step 4: Simplify right side
    63,706.80x = 2,734,911,131.76
  5. Step 5: Solve for x
    x = 2,734,911,131.76/63,706.80
  6. Step 6: Final answer
    x = 42,929.66

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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.