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Finding the Fourth Proportional to 25,484.32, 38,237.76 and 9,903.12

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Solution

The fourth proportional to 25,484.32, 38,237.76 and 9,903.12 is: 14,859.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,484.32 : 38,237.76 = 9,903.12 : x
  2. Step 2: Convert to fraction form
    25,484.32/38,237.76 = 9,903.12/x
  3. Step 3: Cross multiply
    25,484.32x = 38,237.76 × 9,903.12
  4. Step 4: Simplify right side
    25,484.32x = 378,673,125.81
  5. Step 5: Solve for x
    x = 378,673,125.81/25,484.32
  6. Step 6: Final answer
    x = 14,859.06

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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.