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Finding the Fourth Proportional to 58,071.12, 80,140.04 and 32,921.68

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Solution

The fourth proportional to 58,071.12, 80,140.04 and 32,921.68 is: 45,432.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,071.12 : 80,140.04 = 32,921.68 : x
  2. Step 2: Convert to fraction form
    58,071.12/80,140.04 = 32,921.68/x
  3. Step 3: Cross multiply
    58,071.12x = 80,140.04 × 32,921.68
  4. Step 4: Simplify right side
    58,071.12x = 2,638,344,752.07
  5. Step 5: Solve for x
    x = 2,638,344,752.07/58,071.12
  6. Step 6: Final answer
    x = 45,432.99

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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.