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Finding the Fourth Proportional to 61,574.49, 84,971.09 and 34,716.76

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Solution

The fourth proportional to 61,574.49, 84,971.09 and 34,716.76 is: 47,908.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,574.49 : 84,971.09 = 34,716.76 : x
  2. Step 2: Convert to fraction form
    61,574.49/84,971.09 = 34,716.76/x
  3. Step 3: Cross multiply
    61,574.49x = 84,971.09 × 34,716.76
  4. Step 4: Simplify right side
    61,574.49x = 2,949,920,938.47
  5. Step 5: Solve for x
    x = 2,949,920,938.47/61,574.49
  6. Step 6: Final answer
    x = 47,908.17

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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.