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Finding the Fourth Proportional to 46,605.60, 69,908.40 and 39,607.20

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Solution

The fourth proportional to 46,605.60, 69,908.40 and 39,607.20 is: 59,410.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,605.60 : 69,908.40 = 39,607.20 : x
  2. Step 2: Convert to fraction form
    46,605.60/69,908.40 = 39,607.20/x
  3. Step 3: Cross multiply
    46,605.60x = 69,908.40 × 39,607.20
  4. Step 4: Simplify right side
    46,605.60x = 2,768,875,980.48
  5. Step 5: Solve for x
    x = 2,768,875,980.48/46,605.60
  6. Step 6: Final answer
    x = 59,410.80

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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.