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Finding the Fourth Proportional to 25,804.47, 35,569.02 and 19,421.47

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Solution

The fourth proportional to 25,804.47, 35,569.02 and 19,421.47 is: 26,770.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,804.47 : 35,569.02 = 19,421.47 : x
  2. Step 2: Convert to fraction form
    25,804.47/35,569.02 = 19,421.47/x
  3. Step 3: Cross multiply
    25,804.47x = 35,569.02 × 19,421.47
  4. Step 4: Simplify right side
    25,804.47x = 690,802,654.86
  5. Step 5: Solve for x
    x = 690,802,654.86/25,804.47
  6. Step 6: Final answer
    x = 26,770.66

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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.