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Finding the Fourth Proportional to 61,409.45, 92,114.19 and 21,964.20

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Solution

The fourth proportional to 61,409.45, 92,114.19 and 21,964.20 is: 32,946.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,409.45 : 92,114.19 = 21,964.20 : x
  2. Step 2: Convert to fraction form
    61,409.45/92,114.19 = 21,964.20/x
  3. Step 3: Cross multiply
    61,409.45x = 92,114.19 × 21,964.20
  4. Step 4: Simplify right side
    61,409.45x = 2,023,214,492.00
  5. Step 5: Solve for x
    x = 2,023,214,492.00/61,409.45
  6. Step 6: Final answer
    x = 32,946.31

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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.