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Finding the Fourth Proportional to 51,384.48, 70,904.88 and 29,028.48

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Solution

The fourth proportional to 51,384.48, 70,904.88 and 29,028.48 is: 40,056.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,384.48 : 70,904.88 = 29,028.48 : x
  2. Step 2: Convert to fraction form
    51,384.48/70,904.88 = 29,028.48/x
  3. Step 3: Cross multiply
    51,384.48x = 70,904.88 × 29,028.48
  4. Step 4: Simplify right side
    51,384.48x = 2,058,260,890.98
  5. Step 5: Solve for x
    x = 2,058,260,890.98/51,384.48
  6. Step 6: Final answer
    x = 40,056.08

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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.