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Finding the Fourth Proportional to 56,428.65, 77,866.65 and 32,229.50

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Solution

The fourth proportional to 56,428.65, 77,866.65 and 32,229.50 is: 44,473.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,428.65 : 77,866.65 = 32,229.50 : x
  2. Step 2: Convert to fraction form
    56,428.65/77,866.65 = 32,229.50/x
  3. Step 3: Cross multiply
    56,428.65x = 77,866.65 × 32,229.50
  4. Step 4: Simplify right side
    56,428.65x = 2,509,602,806.84
  5. Step 5: Solve for x
    x = 2,509,602,806.84/56,428.65
  6. Step 6: Final answer
    x = 44,473.91

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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.