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Finding the Fourth Proportional to 25,650.64, 38,480.64 and 9,005.68

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Solution

The fourth proportional to 25,650.64, 38,480.64 and 9,005.68 is: 13,510.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,650.64 : 38,480.64 = 9,005.68 : x
  2. Step 2: Convert to fraction form
    25,650.64/38,480.64 = 9,005.68/x
  3. Step 3: Cross multiply
    25,650.64x = 38,480.64 × 9,005.68
  4. Step 4: Simplify right side
    25,650.64x = 346,544,330.04
  5. Step 5: Solve for x
    x = 346,544,330.04/25,650.64
  6. Step 6: Final answer
    x = 13,510.16

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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.