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Finding the Fourth Proportional to 52,632.35, 72,538.70 and 39,855

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Solution

The fourth proportional to 52,632.35, 72,538.70 and 39,855 is: 54,928.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,632.35 : 72,538.70 = 39,855 : x
  2. Step 2: Convert to fraction form
    52,632.35/72,538.70 = 39,855/x
  3. Step 3: Cross multiply
    52,632.35x = 72,538.70 × 39,855
  4. Step 4: Simplify right side
    52,632.35x = 2,891,029,689.23
  5. Step 5: Solve for x
    x = 2,891,029,689.23/52,632.35
  6. Step 6: Final answer
    x = 54,928.76

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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.