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Finding the Fourth Proportional to 55,875.80, 83,805.60 and 16,428.80

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Solution

The fourth proportional to 55,875.80, 83,805.60 and 16,428.80 is: 24,640.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,875.80 : 83,805.60 = 16,428.80 : x
  2. Step 2: Convert to fraction form
    55,875.80/83,805.60 = 16,428.80/x
  3. Step 3: Cross multiply
    55,875.80x = 83,805.60 × 16,428.80
  4. Step 4: Simplify right side
    55,875.80x = 1,376,825,441.28
  5. Step 5: Solve for x
    x = 1,376,825,441.28/55,875.80
  6. Step 6: Final answer
    x = 24,640.82

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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.