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Finding the Fourth Proportional to 66,580.94, 92,352.68 and 64,187.12

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Solution

The fourth proportional to 66,580.94, 92,352.68 and 64,187.12 is: 89,032.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,580.94 : 92,352.68 = 64,187.12 : x
  2. Step 2: Convert to fraction form
    66,580.94/92,352.68 = 64,187.12/x
  3. Step 3: Cross multiply
    66,580.94x = 92,352.68 × 64,187.12
  4. Step 4: Simplify right side
    66,580.94x = 5,927,852,553.48
  5. Step 5: Solve for x
    x = 5,927,852,553.48/66,580.94
  6. Step 6: Final answer
    x = 89,032.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.