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Finding the Fourth Proportional to 55,337.45, 83,006.46 and 13,784.45

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Solution

The fourth proportional to 55,337.45, 83,006.46 and 13,784.45 is: 20,676.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,337.45 : 83,006.46 = 13,784.45 : x
  2. Step 2: Convert to fraction form
    55,337.45/83,006.46 = 13,784.45/x
  3. Step 3: Cross multiply
    55,337.45x = 83,006.46 × 13,784.45
  4. Step 4: Simplify right side
    55,337.45x = 1,144,197,982.51
  5. Step 5: Solve for x
    x = 1,144,197,982.51/55,337.45
  6. Step 6: Final answer
    x = 20,676.74

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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.