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Finding the Fourth Proportional to 66,895.53, 92,315.07 and 38,600.61

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Solution

The fourth proportional to 66,895.53, 92,315.07 and 38,600.61 is: 53,268.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,895.53 : 92,315.07 = 38,600.61 : x
  2. Step 2: Convert to fraction form
    66,895.53/92,315.07 = 38,600.61/x
  3. Step 3: Cross multiply
    66,895.53x = 92,315.07 × 38,600.61
  4. Step 4: Simplify right side
    66,895.53x = 3,563,418,014.19
  5. Step 5: Solve for x
    x = 3,563,418,014.19/66,895.53
  6. Step 6: Final answer
    x = 53,268.40

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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.