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Finding the Fourth Proportional to 46,230.40, 69,345.60 and 38,972.80

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Solution

The fourth proportional to 46,230.40, 69,345.60 and 38,972.80 is: 58,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,230.40 : 69,345.60 = 38,972.80 : x
  2. Step 2: Convert to fraction form
    46,230.40/69,345.60 = 38,972.80/x
  3. Step 3: Cross multiply
    46,230.40x = 69,345.60 × 38,972.80
  4. Step 4: Simplify right side
    46,230.40x = 2,702,592,199.68
  5. Step 5: Solve for x
    x = 2,702,592,199.68/46,230.40
  6. Step 6: Final answer
    x = 58,459.20

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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.