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Finding the Fourth Proportional to 55,859.67, 83,829.48 and 20,320.92

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Solution

The fourth proportional to 55,859.67, 83,829.48 and 20,320.92 is: 30,495.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,859.67 : 83,829.48 = 20,320.92 : x
  2. Step 2: Convert to fraction form
    55,859.67/83,829.48 = 20,320.92/x
  3. Step 3: Cross multiply
    55,859.67x = 83,829.48 × 20,320.92
  4. Step 4: Simplify right side
    55,859.67x = 1,703,492,156.72
  5. Step 5: Solve for x
    x = 1,703,492,156.72/55,859.67
  6. Step 6: Final answer
    x = 30,495.92

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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.