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Finding the Fourth Proportional to 73,447.48, 101,359.02 and 39,915.64

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Solution

The fourth proportional to 73,447.48, 101,359.02 and 39,915.64 is: 55,084.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,447.48 : 101,359.02 = 39,915.64 : x
  2. Step 2: Convert to fraction form
    73,447.48/101,359.02 = 39,915.64/x
  3. Step 3: Cross multiply
    73,447.48x = 101,359.02 × 39,915.64
  4. Step 4: Simplify right side
    73,447.48x = 4,045,810,153.07
  5. Step 5: Solve for x
    x = 4,045,810,153.07/73,447.48
  6. Step 6: Final answer
    x = 55,084.40

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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.