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Finding the Fourth Proportional to 61,652.84, 85,058.16 and 40,460.90

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Solution

The fourth proportional to 61,652.84, 85,058.16 and 40,460.90 is: 55,821.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,652.84 : 85,058.16 = 40,460.90 : x
  2. Step 2: Convert to fraction form
    61,652.84/85,058.16 = 40,460.90/x
  3. Step 3: Cross multiply
    61,652.84x = 85,058.16 × 40,460.90
  4. Step 4: Simplify right side
    61,652.84x = 3,441,529,705.94
  5. Step 5: Solve for x
    x = 3,441,529,705.94/61,652.84
  6. Step 6: Final answer
    x = 55,821.11

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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.