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Finding the Fourth Proportional to 40,278.95, 56,448.85 and 40,278.95

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Solution

The fourth proportional to 40,278.95, 56,448.85 and 40,278.95 is: 56,448.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,278.95 : 56,448.85 = 40,278.95 : x
  2. Step 2: Convert to fraction form
    40,278.95/56,448.85 = 40,278.95/x
  3. Step 3: Cross multiply
    40,278.95x = 56,448.85 × 40,278.95
  4. Step 4: Simplify right side
    40,278.95x = 2,273,700,406.71
  5. Step 5: Solve for x
    x = 2,273,700,406.71/40,278.95
  6. Step 6: Final answer
    x = 56,448.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.