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Finding the Fourth Proportional to 66,834.51, 92,181 and 42,948.21

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Solution

The fourth proportional to 66,834.51, 92,181 and 42,948.21 is: 59,236.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,834.51 : 92,181 = 42,948.21 : x
  2. Step 2: Convert to fraction form
    66,834.51/92,181 = 42,948.21/x
  3. Step 3: Cross multiply
    66,834.51x = 92,181 × 42,948.21
  4. Step 4: Simplify right side
    66,834.51x = 3,959,008,946.01
  5. Step 5: Solve for x
    x = 3,959,008,946.01/66,834.51
  6. Step 6: Final answer
    x = 59,236.00

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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.