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Finding the Fourth Proportional to 60,398.15, 90,599.11 and 28,811.63

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Solution

The fourth proportional to 60,398.15, 90,599.11 and 28,811.63 is: 43,218.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,398.15 : 90,599.11 = 28,811.63 : x
  2. Step 2: Convert to fraction form
    60,398.15/90,599.11 = 28,811.63/x
  3. Step 3: Cross multiply
    60,398.15x = 90,599.11 × 28,811.63
  4. Step 4: Simplify right side
    60,398.15x = 2,610,308,190.12
  5. Step 5: Solve for x
    x = 2,610,308,190.12/60,398.15
  6. Step 6: Final answer
    x = 43,218.35

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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.