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Finding the Fourth Proportional to 56,713.80, 85,070.70 and 48,840.60

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Solution

The fourth proportional to 56,713.80, 85,070.70 and 48,840.60 is: 73,260.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,713.80 : 85,070.70 = 48,840.60 : x
  2. Step 2: Convert to fraction form
    56,713.80/85,070.70 = 48,840.60/x
  3. Step 3: Cross multiply
    56,713.80x = 85,070.70 × 48,840.60
  4. Step 4: Simplify right side
    56,713.80x = 4,154,904,030.42
  5. Step 5: Solve for x
    x = 4,154,904,030.42/56,713.80
  6. Step 6: Final answer
    x = 73,260.90

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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.