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Finding the Fourth Proportional to 35,915.73, 53,873.61 and 9,619.80

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Solution

The fourth proportional to 35,915.73, 53,873.61 and 9,619.80 is: 14,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,915.73 : 53,873.61 = 9,619.80 : x
  2. Step 2: Convert to fraction form
    35,915.73/53,873.61 = 9,619.80/x
  3. Step 3: Cross multiply
    35,915.73x = 53,873.61 × 9,619.80
  4. Step 4: Simplify right side
    35,915.73x = 518,253,353.48
  5. Step 5: Solve for x
    x = 518,253,353.48/35,915.73
  6. Step 6: Final answer
    x = 14,429.70

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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.