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Finding the Fourth Proportional to 58,296.99, 87,463.94 and 20,856.23

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Solution

The fourth proportional to 58,296.99, 87,463.94 and 20,856.23 is: 31,290.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,296.99 : 87,463.94 = 20,856.23 : x
  2. Step 2: Convert to fraction form
    58,296.99/87,463.94 = 20,856.23/x
  3. Step 3: Cross multiply
    58,296.99x = 87,463.94 × 20,856.23
  4. Step 4: Simplify right side
    58,296.99x = 1,824,168,415.71
  5. Step 5: Solve for x
    x = 1,824,168,415.71/58,296.99
  6. Step 6: Final answer
    x = 31,290.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.