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Finding the Fourth Proportional to 45,486.90, 68,133.15 and 37,710.90

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Solution

The fourth proportional to 45,486.90, 68,133.15 and 37,710.90 is: 56,485.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,486.90 : 68,133.15 = 37,710.90 : x
  2. Step 2: Convert to fraction form
    45,486.90/68,133.15 = 37,710.90/x
  3. Step 3: Cross multiply
    45,486.90x = 68,133.15 × 37,710.90
  4. Step 4: Simplify right side
    45,486.90x = 2,569,362,406.34
  5. Step 5: Solve for x
    x = 2,569,362,406.34/45,486.90
  6. Step 6: Final answer
    x = 56,485.77

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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.