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Finding the Fourth Proportional to 25,547.56, 38,298.60 and 9,961.60

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Solution

The fourth proportional to 25,547.56, 38,298.60 and 9,961.60 is: 14,933.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,547.56 : 38,298.60 = 9,961.60 : x
  2. Step 2: Convert to fraction form
    25,547.56/38,298.60 = 9,961.60/x
  3. Step 3: Cross multiply
    25,547.56x = 38,298.60 × 9,961.60
  4. Step 4: Simplify right side
    25,547.56x = 381,515,333.76
  5. Step 5: Solve for x
    x = 381,515,333.76/25,547.56
  6. Step 6: Final answer
    x = 14,933.53

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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.