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Finding the Fourth Proportional to 9,124.70, 13,621.05 and 8,017.53

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Solution

The fourth proportional to 9,124.70, 13,621.05 and 8,017.53 is: 11,968.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,124.70 : 13,621.05 = 8,017.53 : x
  2. Step 2: Convert to fraction form
    9,124.70/13,621.05 = 8,017.53/x
  3. Step 3: Cross multiply
    9,124.70x = 13,621.05 × 8,017.53
  4. Step 4: Simplify right side
    9,124.70x = 109,207,225.10
  5. Step 5: Solve for x
    x = 109,207,225.10/9,124.70
  6. Step 6: Final answer
    x = 11,968.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.