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Finding the Fourth Proportional to 58,441.71, 80,612.16 and 40,530.18

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Solution

The fourth proportional to 58,441.71, 80,612.16 and 40,530.18 is: 55,905.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,441.71 : 80,612.16 = 40,530.18 : x
  2. Step 2: Convert to fraction form
    58,441.71/80,612.16 = 40,530.18/x
  3. Step 3: Cross multiply
    58,441.71x = 80,612.16 × 40,530.18
  4. Step 4: Simplify right side
    58,441.71x = 3,267,225,809.27
  5. Step 5: Solve for x
    x = 3,267,225,809.27/58,441.71
  6. Step 6: Final answer
    x = 55,905.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.