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Finding the Fourth Proportional to 13,943.04, 19,241.52 and 7,655.46

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Solution

The fourth proportional to 13,943.04, 19,241.52 and 7,655.46 is: 10,564.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.04 : 19,241.52 = 7,655.46 : x
  2. Step 2: Convert to fraction form
    13,943.04/19,241.52 = 7,655.46/x
  3. Step 3: Cross multiply
    13,943.04x = 19,241.52 × 7,655.46
  4. Step 4: Simplify right side
    13,943.04x = 147,302,686.70
  5. Step 5: Solve for x
    x = 147,302,686.70/13,943.04
  6. Step 6: Final answer
    x = 10,564.60

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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.