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Finding the Fourth Proportional to 45,620.95, 62,953.48 and 28,624.31

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Solution

The fourth proportional to 45,620.95, 62,953.48 and 28,624.31 is: 39,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,620.95 : 62,953.48 = 28,624.31 : x
  2. Step 2: Convert to fraction form
    45,620.95/62,953.48 = 28,624.31/x
  3. Step 3: Cross multiply
    45,620.95x = 62,953.48 × 28,624.31
  4. Step 4: Simplify right side
    45,620.95x = 1,801,999,927.10
  5. Step 5: Solve for x
    x = 1,801,999,927.10/45,620.95
  6. Step 6: Final answer
    x = 39,499.40

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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.