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Finding the Fourth Proportional to 30,703.80, 46,007.10 and 19,590.60

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Solution

The fourth proportional to 30,703.80, 46,007.10 and 19,590.60 is: 29,354.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,703.80 : 46,007.10 = 19,590.60 : x
  2. Step 2: Convert to fraction form
    30,703.80/46,007.10 = 19,590.60/x
  3. Step 3: Cross multiply
    30,703.80x = 46,007.10 × 19,590.60
  4. Step 4: Simplify right side
    30,703.80x = 901,306,693.26
  5. Step 5: Solve for x
    x = 901,306,693.26/30,703.80
  6. Step 6: Final answer
    x = 29,354.89

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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.