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Finding the Fourth Proportional to 56,762.60, 85,143.90 and 14,642.60

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Solution

The fourth proportional to 56,762.60, 85,143.90 and 14,642.60 is: 21,963.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,762.60 : 85,143.90 = 14,642.60 : x
  2. Step 2: Convert to fraction form
    56,762.60/85,143.90 = 14,642.60/x
  3. Step 3: Cross multiply
    56,762.60x = 85,143.90 × 14,642.60
  4. Step 4: Simplify right side
    56,762.60x = 1,246,728,070.14
  5. Step 5: Solve for x
    x = 1,246,728,070.14/56,762.60
  6. Step 6: Final answer
    x = 21,963.90

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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.