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Finding the Fourth Proportional to 40,328.70, 56,518.50 and 40,328.70

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Solution

The fourth proportional to 40,328.70, 56,518.50 and 40,328.70 is: 56,518.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,328.70 : 56,518.50 = 40,328.70 : x
  2. Step 2: Convert to fraction form
    40,328.70/56,518.50 = 40,328.70/x
  3. Step 3: Cross multiply
    40,328.70x = 56,518.50 × 40,328.70
  4. Step 4: Simplify right side
    40,328.70x = 2,279,317,630.95
  5. Step 5: Solve for x
    x = 2,279,317,630.95/40,328.70
  6. Step 6: Final answer
    x = 56,518.50

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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.