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Finding the Fourth Proportional to 61,287.84, 84,574.89 and 34,065.63

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Solution

The fourth proportional to 61,287.84, 84,574.89 and 34,065.63 is: 47,009.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,287.84 : 84,574.89 = 34,065.63 : x
  2. Step 2: Convert to fraction form
    61,287.84/84,574.89 = 34,065.63/x
  3. Step 3: Cross multiply
    61,287.84x = 84,574.89 × 34,065.63
  4. Step 4: Simplify right side
    61,287.84x = 2,881,096,910.03
  5. Step 5: Solve for x
    x = 2,881,096,910.03/61,287.84
  6. Step 6: Final answer
    x = 47,009.27

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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.