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Finding the Fourth Proportional to 42,477.90, 58,620.90 and 23,358.48

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Solution

The fourth proportional to 42,477.90, 58,620.90 and 23,358.48 is: 32,235.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,477.90 : 58,620.90 = 23,358.48 : x
  2. Step 2: Convert to fraction form
    42,477.90/58,620.90 = 23,358.48/x
  3. Step 3: Cross multiply
    42,477.90x = 58,620.90 × 23,358.48
  4. Step 4: Simplify right side
    42,477.90x = 1,369,295,120.23
  5. Step 5: Solve for x
    x = 1,369,295,120.23/42,477.90
  6. Step 6: Final answer
    x = 32,235.47

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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.