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Finding the Fourth Proportional to 65,394.98, 98,091.90 and 43,307.18

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Solution

The fourth proportional to 65,394.98, 98,091.90 and 43,307.18 is: 64,960.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,394.98 : 98,091.90 = 43,307.18 : x
  2. Step 2: Convert to fraction form
    65,394.98/98,091.90 = 43,307.18/x
  3. Step 3: Cross multiply
    65,394.98x = 98,091.90 × 43,307.18
  4. Step 4: Simplify right side
    65,394.98x = 4,248,083,569.84
  5. Step 5: Solve for x
    x = 4,248,083,569.84/65,394.98
  6. Step 6: Final answer
    x = 64,960.39

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1.5x scale

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.