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Finding the Fourth Proportional to 21,595.64, 32,365.65 and 10,480.82

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Solution

The fourth proportional to 21,595.64, 32,365.65 and 10,480.82 is: 15,707.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,595.64 : 32,365.65 = 10,480.82 : x
  2. Step 2: Convert to fraction form
    21,595.64/32,365.65 = 10,480.82/x
  3. Step 3: Cross multiply
    21,595.64x = 32,365.65 × 10,480.82
  4. Step 4: Simplify right side
    21,595.64x = 339,218,551.83
  5. Step 5: Solve for x
    x = 339,218,551.83/21,595.64
  6. Step 6: Final answer
    x = 15,707.73

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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.