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Finding the Fourth Proportional to 65,792.40, 98,701.40 and 28,352.40

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Solution

The fourth proportional to 65,792.40, 98,701.40 and 28,352.40 is: 42,534.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,792.40 : 98,701.40 = 28,352.40 : x
  2. Step 2: Convert to fraction form
    65,792.40/98,701.40 = 28,352.40/x
  3. Step 3: Cross multiply
    65,792.40x = 98,701.40 × 28,352.40
  4. Step 4: Simplify right side
    65,792.40x = 2,798,421,573.36
  5. Step 5: Solve for x
    x = 2,798,421,573.36/65,792.40
  6. Step 6: Final answer
    x = 42,534.12

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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.