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Finding the Fourth Proportional to 52,718.95, 79,076.15 and 15,278.22

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Solution

The fourth proportional to 52,718.95, 79,076.15 and 15,278.22 is: 22,916.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,718.95 : 79,076.15 = 15,278.22 : x
  2. Step 2: Convert to fraction form
    52,718.95/79,076.15 = 15,278.22/x
  3. Step 3: Cross multiply
    52,718.95x = 79,076.15 × 15,278.22
  4. Step 4: Simplify right side
    52,718.95x = 1,208,142,797.36
  5. Step 5: Solve for x
    x = 1,208,142,797.36/52,718.95
  6. Step 6: Final answer
    x = 22,916.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.