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Finding the Fourth Proportional to 52,358.25, 72,255.12 and 28,484.91

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Solution

The fourth proportional to 52,358.25, 72,255.12 and 28,484.91 is: 39,309.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,358.25 : 72,255.12 = 28,484.91 : x
  2. Step 2: Convert to fraction form
    52,358.25/72,255.12 = 28,484.91/x
  3. Step 3: Cross multiply
    52,358.25x = 72,255.12 × 28,484.91
  4. Step 4: Simplify right side
    52,358.25x = 2,058,180,590.24
  5. Step 5: Solve for x
    x = 2,058,180,590.24/52,358.25
  6. Step 6: Final answer
    x = 39,309.58

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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.