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Finding the Fourth Proportional to 63,416.28, 87,315.28 and 53,836.28

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Solution

The fourth proportional to 63,416.28, 87,315.28 and 53,836.28 is: 74,124.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,416.28 : 87,315.28 = 53,836.28 : x
  2. Step 2: Convert to fraction form
    63,416.28/87,315.28 = 53,836.28/x
  3. Step 3: Cross multiply
    63,416.28x = 87,315.28 × 53,836.28
  4. Step 4: Simplify right side
    63,416.28x = 4,700,729,862.36
  5. Step 5: Solve for x
    x = 4,700,729,862.36/63,416.28
  6. Step 6: Final answer
    x = 74,124.97

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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.