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Finding the Fourth Proportional to 58,470.68, 80,687.40 and 33,315.32

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Solution

The fourth proportional to 58,470.68, 80,687.40 and 33,315.32 is: 45,973.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,470.68 : 80,687.40 = 33,315.32 : x
  2. Step 2: Convert to fraction form
    58,470.68/80,687.40 = 33,315.32/x
  3. Step 3: Cross multiply
    58,470.68x = 80,687.40 × 33,315.32
  4. Step 4: Simplify right side
    58,470.68x = 2,688,126,550.97
  5. Step 5: Solve for x
    x = 2,688,126,550.97/58,470.68
  6. Step 6: Final answer
    x = 45,973.92

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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.