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Finding the Fourth Proportional to 34,685.04, 47,865.52 and 19,578.34

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Solution

The fourth proportional to 34,685.04, 47,865.52 and 19,578.34 is: 27,018.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,685.04 : 47,865.52 = 19,578.34 : x
  2. Step 2: Convert to fraction form
    34,685.04/47,865.52 = 19,578.34/x
  3. Step 3: Cross multiply
    34,685.04x = 47,865.52 × 19,578.34
  4. Step 4: Simplify right side
    34,685.04x = 937,127,424.84
  5. Step 5: Solve for x
    x = 937,127,424.84/34,685.04
  6. Step 6: Final answer
    x = 27,018.20

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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.