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Finding the Fourth Proportional to 6,531.84, 9,009 and 4,541.40

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Solution

The fourth proportional to 6,531.84, 9,009 and 4,541.40 is: 6,263.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,531.84 : 9,009 = 4,541.40 : x
  2. Step 2: Convert to fraction form
    6,531.84/9,009 = 4,541.40/x
  3. Step 3: Cross multiply
    6,531.84x = 9,009 × 4,541.40
  4. Step 4: Simplify right side
    6,531.84x = 40,913,472.60
  5. Step 5: Solve for x
    x = 40,913,472.60/6,531.84
  6. Step 6: Final answer
    x = 6,263.70

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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.