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Finding the Fourth Proportional to 40,426.90, 56,714.30 and 40,426.90

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Solution

The fourth proportional to 40,426.90, 56,714.30 and 40,426.90 is: 56,714.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,426.90 : 56,714.30 = 40,426.90 : x
  2. Step 2: Convert to fraction form
    40,426.90/56,714.30 = 40,426.90/x
  3. Step 3: Cross multiply
    40,426.90x = 56,714.30 × 40,426.90
  4. Step 4: Simplify right side
    40,426.90x = 2,292,783,334.67
  5. Step 5: Solve for x
    x = 2,292,783,334.67/40,426.90
  6. Step 6: Final answer
    x = 56,714.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.