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Finding the Fourth Proportional to 63,465.77, 87,592.41 and 40,505.50

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Solution

The fourth proportional to 63,465.77, 87,592.41 and 40,505.50 is: 55,903.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,465.77 : 87,592.41 = 40,505.50 : x
  2. Step 2: Convert to fraction form
    63,465.77/87,592.41 = 40,505.50/x
  3. Step 3: Cross multiply
    63,465.77x = 87,592.41 × 40,505.50
  4. Step 4: Simplify right side
    63,465.77x = 3,547,974,363.26
  5. Step 5: Solve for x
    x = 3,547,974,363.26/63,465.77
  6. Step 6: Final answer
    x = 55,903.75

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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.