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Finding the Fourth Proportional to 46,860.90, 70,291.38 and 19,158.90

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Solution

The fourth proportional to 46,860.90, 70,291.38 and 19,158.90 is: 28,738.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,860.90 : 70,291.38 = 19,158.90 : x
  2. Step 2: Convert to fraction form
    46,860.90/70,291.38 = 19,158.90/x
  3. Step 3: Cross multiply
    46,860.90x = 70,291.38 × 19,158.90
  4. Step 4: Simplify right side
    46,860.90x = 1,346,705,520.28
  5. Step 5: Solve for x
    x = 1,346,705,520.28/46,860.90
  6. Step 6: Final answer
    x = 28,738.36

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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.