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Finding the Fourth Proportional to 27,056.69, 37,385.93 and 20,822.93

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Solution

The fourth proportional to 27,056.69, 37,385.93 and 20,822.93 is: 28,772.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,056.69 : 37,385.93 = 20,822.93 : x
  2. Step 2: Convert to fraction form
    27,056.69/37,385.93 = 20,822.93/x
  3. Step 3: Cross multiply
    27,056.69x = 37,385.93 × 20,822.93
  4. Step 4: Simplify right side
    27,056.69x = 778,484,603.37
  5. Step 5: Solve for x
    x = 778,484,603.37/27,056.69
  6. Step 6: Final answer
    x = 28,772.35

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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.