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Finding the Fourth Proportional to 30,783.01, 46,174.52 and 7,409.45

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Solution

The fourth proportional to 30,783.01, 46,174.52 and 7,409.45 is: 11,114.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,783.01 : 46,174.52 = 7,409.45 : x
  2. Step 2: Convert to fraction form
    30,783.01/46,174.52 = 7,409.45/x
  3. Step 3: Cross multiply
    30,783.01x = 46,174.52 × 7,409.45
  4. Step 4: Simplify right side
    30,783.01x = 342,127,566.34
  5. Step 5: Solve for x
    x = 342,127,566.34/30,783.01
  6. Step 6: Final answer
    x = 11,114.17

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Double scale
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Similar ratio
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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.