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Finding the Fourth Proportional to 56,362.80, 77,778.60 and 32,490.48

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Solution

The fourth proportional to 56,362.80, 77,778.60 and 32,490.48 is: 44,835.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,362.80 : 77,778.60 = 32,490.48 : x
  2. Step 2: Convert to fraction form
    56,362.80/77,778.60 = 32,490.48/x
  3. Step 3: Cross multiply
    56,362.80x = 77,778.60 × 32,490.48
  4. Step 4: Simplify right side
    56,362.80x = 2,527,064,047.73
  5. Step 5: Solve for x
    x = 2,527,064,047.73/56,362.80
  6. Step 6: Final answer
    x = 44,835.67

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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.