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Finding the Fourth Proportional to 57,776.76, 86,622.84 and 39,010.32

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Solution

The fourth proportional to 57,776.76, 86,622.84 and 39,010.32 is: 58,486.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,776.76 : 86,622.84 = 39,010.32 : x
  2. Step 2: Convert to fraction form
    57,776.76/86,622.84 = 39,010.32/x
  3. Step 3: Cross multiply
    57,776.76x = 86,622.84 × 39,010.32
  4. Step 4: Simplify right side
    57,776.76x = 3,379,184,707.71
  5. Step 5: Solve for x
    x = 3,379,184,707.71/57,776.76
  6. Step 6: Final answer
    x = 58,486.92

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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.