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Finding the Fourth Proportional to 34,896.64, 48,154.98 and 18,980.74

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Solution

The fourth proportional to 34,896.64, 48,154.98 and 18,980.74 is: 26,192.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,896.64 : 48,154.98 = 18,980.74 : x
  2. Step 2: Convert to fraction form
    34,896.64/48,154.98 = 18,980.74/x
  3. Step 3: Cross multiply
    34,896.64x = 48,154.98 × 18,980.74
  4. Step 4: Simplify right side
    34,896.64x = 914,017,155.09
  5. Step 5: Solve for x
    x = 914,017,155.09/34,896.64
  6. Step 6: Final answer
    x = 26,192.12

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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.