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Finding the Fourth Proportional to 32,290.50, 44,579.16 and 20,970.12

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Solution

The fourth proportional to 32,290.50, 44,579.16 and 20,970.12 is: 28,950.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,290.50 : 44,579.16 = 20,970.12 : x
  2. Step 2: Convert to fraction form
    32,290.50/44,579.16 = 20,970.12/x
  3. Step 3: Cross multiply
    32,290.50x = 44,579.16 × 20,970.12
  4. Step 4: Simplify right side
    32,290.50x = 934,830,334.70
  5. Step 5: Solve for x
    x = 934,830,334.70/32,290.50
  6. Step 6: Final answer
    x = 28,950.63

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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.