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Finding the Fourth Proportional to 7,705.59, 10,634.21 and 4,347.18

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Solution

The fourth proportional to 7,705.59, 10,634.21 and 4,347.18 is: 5,999.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,705.59 : 10,634.21 = 4,347.18 : x
  2. Step 2: Convert to fraction form
    7,705.59/10,634.21 = 4,347.18/x
  3. Step 3: Cross multiply
    7,705.59x = 10,634.21 × 4,347.18
  4. Step 4: Simplify right side
    7,705.59x = 46,228,779.48
  5. Step 5: Solve for x
    x = 46,228,779.48/7,705.59
  6. Step 6: Final answer
    x = 5,999.38

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.