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Finding the Fourth Proportional to 46,101.20, 69,216.60 and 28,605.20

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Solution

The fourth proportional to 46,101.20, 69,216.60 and 28,605.20 is: 42,948.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,101.20 : 69,216.60 = 28,605.20 : x
  2. Step 2: Convert to fraction form
    46,101.20/69,216.60 = 28,605.20/x
  3. Step 3: Cross multiply
    46,101.20x = 69,216.60 × 28,605.20
  4. Step 4: Simplify right side
    46,101.20x = 1,979,954,686.32
  5. Step 5: Solve for x
    x = 1,979,954,686.32/46,101.20
  6. Step 6: Final answer
    x = 42,948.01

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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.