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Finding the Fourth Proportional to 19,666.84, 29,482.53 and 7,177.99

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Solution

The fourth proportional to 19,666.84, 29,482.53 and 7,177.99 is: 10,760.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,666.84 : 29,482.53 = 7,177.99 : x
  2. Step 2: Convert to fraction form
    19,666.84/29,482.53 = 7,177.99/x
  3. Step 3: Cross multiply
    19,666.84x = 29,482.53 × 7,177.99
  4. Step 4: Simplify right side
    19,666.84x = 211,625,305.51
  5. Step 5: Solve for x
    x = 211,625,305.51/19,666.84
  6. Step 6: Final answer
    x = 10,760.51

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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.