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Finding the Fourth Proportional to 65,955.04, 98,895.56 and 28,491.72

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Solution

The fourth proportional to 65,955.04, 98,895.56 and 28,491.72 is: 42,721.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,955.04 : 98,895.56 = 28,491.72 : x
  2. Step 2: Convert to fraction form
    65,955.04/98,895.56 = 28,491.72/x
  3. Step 3: Cross multiply
    65,955.04x = 98,895.56 × 28,491.72
  4. Step 4: Simplify right side
    65,955.04x = 2,817,704,604.76
  5. Step 5: Solve for x
    x = 2,817,704,604.76/65,955.04
  6. Step 6: Final answer
    x = 42,721.60

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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.