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Finding the Fourth Proportional to 19,641.78, 29,240.55 and 19,525.04

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Solution

The fourth proportional to 19,641.78, 29,240.55 and 19,525.04 is: 29,066.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,641.78 : 29,240.55 = 19,525.04 : x
  2. Step 2: Convert to fraction form
    19,641.78/29,240.55 = 19,525.04/x
  3. Step 3: Cross multiply
    19,641.78x = 29,240.55 × 19,525.04
  4. Step 4: Simplify right side
    19,641.78x = 570,922,871.82
  5. Step 5: Solve for x
    x = 570,922,871.82/19,641.78
  6. Step 6: Final answer
    x = 29,066.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.