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Finding the Fourth Proportional to 25,574.26, 35,293.90 and 15,368.42

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Solution

The fourth proportional to 25,574.26, 35,293.90 and 15,368.42 is: 21,209.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,574.26 : 35,293.90 = 15,368.42 : x
  2. Step 2: Convert to fraction form
    25,574.26/35,293.90 = 15,368.42/x
  3. Step 3: Cross multiply
    25,574.26x = 35,293.90 × 15,368.42
  4. Step 4: Simplify right side
    25,574.26x = 542,411,478.64
  5. Step 5: Solve for x
    x = 542,411,478.64/25,574.26
  6. Step 6: Final answer
    x = 21,209.27

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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.