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Finding the Fourth Proportional to 52,772.74, 72,828.03 and 28,901.68

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Solution

The fourth proportional to 52,772.74, 72,828.03 and 28,901.68 is: 39,885.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,772.74 : 72,828.03 = 28,901.68 : x
  2. Step 2: Convert to fraction form
    52,772.74/72,828.03 = 28,901.68/x
  3. Step 3: Cross multiply
    52,772.74x = 72,828.03 × 28,901.68
  4. Step 4: Simplify right side
    52,772.74x = 2,104,852,418.09
  5. Step 5: Solve for x
    x = 2,104,852,418.09/52,772.74
  6. Step 6: Final answer
    x = 39,885.22

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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.