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Finding the Fourth Proportional to 61,341.44, 84,654.52 and 34,120.40

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Solution

The fourth proportional to 61,341.44, 84,654.52 and 34,120.40 is: 47,088.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,341.44 : 84,654.52 = 34,120.40 : x
  2. Step 2: Convert to fraction form
    61,341.44/84,654.52 = 34,120.40/x
  3. Step 3: Cross multiply
    61,341.44x = 84,654.52 × 34,120.40
  4. Step 4: Simplify right side
    61,341.44x = 2,888,446,084.21
  5. Step 5: Solve for x
    x = 2,888,446,084.21/61,341.44
  6. Step 6: Final answer
    x = 47,088.01

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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.