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Finding the Fourth Proportional to 7,572.98, 10,444.79 and 4,921.24

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Solution

The fourth proportional to 7,572.98, 10,444.79 and 4,921.24 is: 6,787.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,572.98 : 10,444.79 = 4,921.24 : x
  2. Step 2: Convert to fraction form
    7,572.98/10,444.79 = 4,921.24/x
  3. Step 3: Cross multiply
    7,572.98x = 10,444.79 × 4,921.24
  4. Step 4: Simplify right side
    7,572.98x = 51,401,241.51
  5. Step 5: Solve for x
    x = 51,401,241.51/7,572.98
  6. Step 6: Final answer
    x = 6,787.46

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.