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Finding the Fourth Proportional to 25,969.42, 38,948.66 and 9,330.40

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Solution

The fourth proportional to 25,969.42, 38,948.66 and 9,330.40 is: 13,993.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,969.42 : 38,948.66 = 9,330.40 : x
  2. Step 2: Convert to fraction form
    25,969.42/38,948.66 = 9,330.40/x
  3. Step 3: Cross multiply
    25,969.42x = 38,948.66 × 9,330.40
  4. Step 4: Simplify right side
    25,969.42x = 363,406,577.26
  5. Step 5: Solve for x
    x = 363,406,577.26/25,969.42
  6. Step 6: Final answer
    x = 13,993.63

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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.