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Finding the Fourth Proportional to 59,779.71, 89,679.29 and 20,332.71

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Solution

The fourth proportional to 59,779.71, 89,679.29 and 20,332.71 is: 30,502.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,779.71 : 89,679.29 = 20,332.71 : x
  2. Step 2: Convert to fraction form
    59,779.71/89,679.29 = 20,332.71/x
  3. Step 3: Cross multiply
    59,779.71x = 89,679.29 × 20,332.71
  4. Step 4: Simplify right side
    59,779.71x = 1,823,422,894.91
  5. Step 5: Solve for x
    x = 1,823,422,894.91/59,779.71
  6. Step 6: Final answer
    x = 30,502.37

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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.