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Finding the Fourth Proportional to 61,104.40, 84,209.92 and 47,654.40

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Solution

The fourth proportional to 61,104.40, 84,209.92 and 47,654.40 is: 65,674.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,104.40 : 84,209.92 = 47,654.40 : x
  2. Step 2: Convert to fraction form
    61,104.40/84,209.92 = 47,654.40/x
  3. Step 3: Cross multiply
    61,104.40x = 84,209.92 × 47,654.40
  4. Step 4: Simplify right side
    61,104.40x = 4,012,973,211.65
  5. Step 5: Solve for x
    x = 4,012,973,211.65/61,104.40
  6. Step 6: Final answer
    x = 65,674.05

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1.5x scale

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.