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Finding the Fourth Proportional to 14,053.56, 21,065.28 and 7,019.70

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Solution

The fourth proportional to 14,053.56, 21,065.28 and 7,019.70 is: 10,522.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,053.56 : 21,065.28 = 7,019.70 : x
  2. Step 2: Convert to fraction form
    14,053.56/21,065.28 = 7,019.70/x
  3. Step 3: Cross multiply
    14,053.56x = 21,065.28 × 7,019.70
  4. Step 4: Simplify right side
    14,053.56x = 147,871,946.02
  5. Step 5: Solve for x
    x = 147,871,946.02/14,053.56
  6. Step 6: Final answer
    x = 10,522.03

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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.