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Finding the Fourth Proportional to 72,444.89, 108,658.10 and 28,041.26

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Solution

The fourth proportional to 72,444.89, 108,658.10 and 28,041.26 is: 42,058.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,444.89 : 108,658.10 = 28,041.26 : x
  2. Step 2: Convert to fraction form
    72,444.89/108,658.10 = 28,041.26/x
  3. Step 3: Cross multiply
    72,444.89x = 108,658.10 × 28,041.26
  4. Step 4: Simplify right side
    72,444.89x = 3,046,910,033.21
  5. Step 5: Solve for x
    x = 3,046,910,033.21/72,444.89
  6. Step 6: Final answer
    x = 42,058.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.