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Finding the Fourth Proportional to 60,628.40, 90,942.60 and 56,254.40

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Solution

The fourth proportional to 60,628.40, 90,942.60 and 56,254.40 is: 84,381.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,628.40 : 90,942.60 = 56,254.40 : x
  2. Step 2: Convert to fraction form
    60,628.40/90,942.60 = 56,254.40/x
  3. Step 3: Cross multiply
    60,628.40x = 90,942.60 × 56,254.40
  4. Step 4: Simplify right side
    60,628.40x = 5,115,921,397.44
  5. Step 5: Solve for x
    x = 5,115,921,397.44/60,628.40
  6. Step 6: Final answer
    x = 84,381.60

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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.