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Finding the Fourth Proportional to 46,430.90, 69,645.02 and 13,150.90

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Solution

The fourth proportional to 46,430.90, 69,645.02 and 13,150.90 is: 19,725.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,430.90 : 69,645.02 = 13,150.90 : x
  2. Step 2: Convert to fraction form
    46,430.90/69,645.02 = 13,150.90/x
  3. Step 3: Cross multiply
    46,430.90x = 69,645.02 × 13,150.90
  4. Step 4: Simplify right side
    46,430.90x = 915,894,714.82
  5. Step 5: Solve for x
    x = 915,894,714.82/46,430.90
  6. Step 6: Final answer
    x = 19,725.97

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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.