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Finding the Fourth Proportional to 40,504.86, 55,931.86 and 25,423.66

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Solution

The fourth proportional to 40,504.86, 55,931.86 and 25,423.66 is: 35,106.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,504.86 : 55,931.86 = 25,423.66 : x
  2. Step 2: Convert to fraction form
    40,504.86/55,931.86 = 25,423.66/x
  3. Step 3: Cross multiply
    40,504.86x = 55,931.86 × 25,423.66
  4. Step 4: Simplify right side
    40,504.86x = 1,421,992,591.81
  5. Step 5: Solve for x
    x = 1,421,992,591.81/40,504.86
  6. Step 6: Final answer
    x = 35,106.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.