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Finding the Fourth Proportional to 56,330.60, 84,495.90 and 55,812.20

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Solution

The fourth proportional to 56,330.60, 84,495.90 and 55,812.20 is: 83,718.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,330.60 : 84,495.90 = 55,812.20 : x
  2. Step 2: Convert to fraction form
    56,330.60/84,495.90 = 55,812.20/x
  3. Step 3: Cross multiply
    56,330.60x = 84,495.90 × 55,812.20
  4. Step 4: Simplify right side
    56,330.60x = 4,715,902,069.98
  5. Step 5: Solve for x
    x = 4,715,902,069.98/56,330.60
  6. Step 6: Final answer
    x = 83,718.30

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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.