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Finding the Fourth Proportional to 30,699.36, 46,048.84 and 7,903.16

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Solution

The fourth proportional to 30,699.36, 46,048.84 and 7,903.16 is: 11,854.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,699.36 : 46,048.84 = 7,903.16 : x
  2. Step 2: Convert to fraction form
    30,699.36/46,048.84 = 7,903.16/x
  3. Step 3: Cross multiply
    30,699.36x = 46,048.84 × 7,903.16
  4. Step 4: Simplify right side
    30,699.36x = 363,931,350.33
  5. Step 5: Solve for x
    x = 363,931,350.33/30,699.36
  6. Step 6: Final answer
    x = 11,854.69

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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.