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Finding the Fourth Proportional to 52,359.59, 72,255.44 and 28,485.72

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Solution

The fourth proportional to 52,359.59, 72,255.44 and 28,485.72 is: 39,309.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,359.59 : 72,255.44 = 28,485.72 : x
  2. Step 2: Convert to fraction form
    52,359.59/72,255.44 = 28,485.72/x
  3. Step 3: Cross multiply
    52,359.59x = 72,255.44 × 28,485.72
  4. Step 4: Simplify right side
    52,359.59x = 2,058,248,303.53
  5. Step 5: Solve for x
    x = 2,058,248,303.53/52,359.59
  6. Step 6: Final answer
    x = 39,309.86

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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.