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Finding the Fourth Proportional to 25,779.53, 35,472.66 and 25,009.22

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Solution

The fourth proportional to 25,779.53, 35,472.66 and 25,009.22 is: 34,412.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,779.53 : 35,472.66 = 25,009.22 : x
  2. Step 2: Convert to fraction form
    25,779.53/35,472.66 = 25,009.22/x
  3. Step 3: Cross multiply
    25,779.53x = 35,472.66 × 25,009.22
  4. Step 4: Simplify right side
    25,779.53x = 887,143,557.93
  5. Step 5: Solve for x
    x = 887,143,557.93/25,779.53
  6. Step 6: Final answer
    x = 34,412.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.