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Finding the Fourth Proportional to 19,711.55, 29,529.03 and 17,502.68

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Solution

The fourth proportional to 19,711.55, 29,529.03 and 17,502.68 is: 26,220.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,711.55 : 29,529.03 = 17,502.68 : x
  2. Step 2: Convert to fraction form
    19,711.55/29,529.03 = 17,502.68/x
  3. Step 3: Cross multiply
    19,711.55x = 29,529.03 × 17,502.68
  4. Step 4: Simplify right side
    19,711.55x = 516,837,075.29
  5. Step 5: Solve for x
    x = 516,837,075.29/19,711.55
  6. Step 6: Final answer
    x = 26,220.01

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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.