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Finding the Fourth Proportional to 35,590.78, 53,370.78 and 12,219.04

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Solution

The fourth proportional to 35,590.78, 53,370.78 and 12,219.04 is: 18,323.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,590.78 : 53,370.78 = 12,219.04 : x
  2. Step 2: Convert to fraction form
    35,590.78/53,370.78 = 12,219.04/x
  3. Step 3: Cross multiply
    35,590.78x = 53,370.78 × 12,219.04
  4. Step 4: Simplify right side
    35,590.78x = 652,139,695.65
  5. Step 5: Solve for x
    x = 652,139,695.65/35,590.78
  6. Step 6: Final answer
    x = 18,323.28

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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.