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Finding the Fourth Proportional to 12,706.53, 17,534.75 and 7,041.23

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Solution

The fourth proportional to 12,706.53, 17,534.75 and 7,041.23 is: 9,716.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,706.53 : 17,534.75 = 7,041.23 : x
  2. Step 2: Convert to fraction form
    12,706.53/17,534.75 = 7,041.23/x
  3. Step 3: Cross multiply
    12,706.53x = 17,534.75 × 7,041.23
  4. Step 4: Simplify right side
    12,706.53x = 123,466,084.86
  5. Step 5: Solve for x
    x = 123,466,084.86/12,706.53
  6. Step 6: Final answer
    x = 9,716.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.