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Finding the Fourth Proportional to 19,648.05, 29,454.84 and 7,810.08

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Solution

The fourth proportional to 19,648.05, 29,454.84 and 7,810.08 is: 11,708.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,648.05 : 29,454.84 = 7,810.08 : x
  2. Step 2: Convert to fraction form
    19,648.05/29,454.84 = 7,810.08/x
  3. Step 3: Cross multiply
    19,648.05x = 29,454.84 × 7,810.08
  4. Step 4: Simplify right side
    19,648.05x = 230,044,656.79
  5. Step 5: Solve for x
    x = 230,044,656.79/19,648.05
  6. Step 6: Final answer
    x = 11,708.27

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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.