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Finding the Fourth Proportional to 19,482.89, 29,237.28 and 7,170.89

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Solution

The fourth proportional to 19,482.89, 29,237.28 and 7,170.89 is: 10,761.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,482.89 : 29,237.28 = 7,170.89 : x
  2. Step 2: Convert to fraction form
    19,482.89/29,237.28 = 7,170.89/x
  3. Step 3: Cross multiply
    19,482.89x = 29,237.28 × 7,170.89
  4. Step 4: Simplify right side
    19,482.89x = 209,657,318.78
  5. Step 5: Solve for x
    x = 209,657,318.78/19,482.89
  6. Step 6: Final answer
    x = 10,761.10

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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.