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Finding the Fourth Proportional to 74,946.77, 112,421.67 and 30,542.77

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Solution

The fourth proportional to 74,946.77, 112,421.67 and 30,542.77 is: 45,814.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,946.77 : 112,421.67 = 30,542.77 : x
  2. Step 2: Convert to fraction form
    74,946.77/112,421.67 = 30,542.77/x
  3. Step 3: Cross multiply
    74,946.77x = 112,421.67 × 30,542.77
  4. Step 4: Simplify right side
    74,946.77x = 3,433,668,495.00
  5. Step 5: Solve for x
    x = 3,433,668,495.00/74,946.77
  6. Step 6: Final answer
    x = 45,814.77

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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.