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Finding the Fourth Proportional to 12,069.51, 16,655.88 and 7,353.80

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Solution

The fourth proportional to 12,069.51, 16,655.88 and 7,353.80 is: 10,148.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,069.51 : 16,655.88 = 7,353.80 : x
  2. Step 2: Convert to fraction form
    12,069.51/16,655.88 = 7,353.80/x
  3. Step 3: Cross multiply
    12,069.51x = 16,655.88 × 7,353.80
  4. Step 4: Simplify right side
    12,069.51x = 122,483,927.06
  5. Step 5: Solve for x
    x = 122,483,927.06/12,069.51
  6. Step 6: Final answer
    x = 10,148.21

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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.