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Finding the Fourth Proportional to 45,813.53, 68,709.56 and 25,831.64

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Solution

The fourth proportional to 45,813.53, 68,709.56 and 25,831.64 is: 38,741.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,813.53 : 68,709.56 = 25,831.64 : x
  2. Step 2: Convert to fraction form
    45,813.53/68,709.56 = 25,831.64/x
  3. Step 3: Cross multiply
    45,813.53x = 68,709.56 × 25,831.64
  4. Step 4: Simplify right side
    45,813.53x = 1,774,880,145.77
  5. Step 5: Solve for x
    x = 1,774,880,145.77/45,813.53
  6. Step 6: Final answer
    x = 38,741.40

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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.