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Finding the Fourth Proportional to 35,943.40, 53,915.10 and 33,639.40

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Solution

The fourth proportional to 35,943.40, 53,915.10 and 33,639.40 is: 50,459.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,943.40 : 53,915.10 = 33,639.40 : x
  2. Step 2: Convert to fraction form
    35,943.40/53,915.10 = 33,639.40/x
  3. Step 3: Cross multiply
    35,943.40x = 53,915.10 × 33,639.40
  4. Step 4: Simplify right side
    35,943.40x = 1,813,671,614.94
  5. Step 5: Solve for x
    x = 1,813,671,614.94/35,943.40
  6. Step 6: Final answer
    x = 50,459.10

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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.