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Finding the Fourth Proportional to 55,423.90, 75,931.02 and 53,348.26

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Solution

The fourth proportional to 55,423.90, 75,931.02 and 53,348.26 is: 73,087.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,423.90 : 75,931.02 = 53,348.26 : x
  2. Step 2: Convert to fraction form
    55,423.90/75,931.02 = 53,348.26/x
  3. Step 3: Cross multiply
    55,423.90x = 75,931.02 × 53,348.26
  4. Step 4: Simplify right side
    55,423.90x = 4,050,787,473.99
  5. Step 5: Solve for x
    x = 4,050,787,473.99/55,423.90
  6. Step 6: Final answer
    x = 73,087.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.