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Finding the Fourth Proportional to 51,323.61, 70,822.50 and 28,661.27

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Solution

The fourth proportional to 51,323.61, 70,822.50 and 28,661.27 is: 39,550.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,323.61 : 70,822.50 = 28,661.27 : x
  2. Step 2: Convert to fraction form
    51,323.61/70,822.50 = 28,661.27/x
  3. Step 3: Cross multiply
    51,323.61x = 70,822.50 × 28,661.27
  4. Step 4: Simplify right side
    51,323.61x = 2,029,862,440.46
  5. Step 5: Solve for x
    x = 2,029,862,440.46/51,323.61
  6. Step 6: Final answer
    x = 39,550.27

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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.