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Finding the Fourth Proportional to 61,159.79, 84,399.49 and 35,680.97

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Solution

The fourth proportional to 61,159.79, 84,399.49 and 35,680.97 is: 49,239.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,159.79 : 84,399.49 = 35,680.97 : x
  2. Step 2: Convert to fraction form
    61,159.79/84,399.49 = 35,680.97/x
  3. Step 3: Cross multiply
    61,159.79x = 84,399.49 × 35,680.97
  4. Step 4: Simplify right side
    61,159.79x = 3,011,455,670.71
  5. Step 5: Solve for x
    x = 3,011,455,670.71/61,159.79
  6. Step 6: Final answer
    x = 49,239.14

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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.