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Finding the Fourth Proportional to 7,572.26, 10,444.47 and 4,918.70

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Solution

The fourth proportional to 7,572.26, 10,444.47 and 4,918.70 is: 6,784.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,572.26 : 10,444.47 = 4,918.70 : x
  2. Step 2: Convert to fraction form
    7,572.26/10,444.47 = 4,918.70/x
  3. Step 3: Cross multiply
    7,572.26x = 10,444.47 × 4,918.70
  4. Step 4: Simplify right side
    7,572.26x = 51,373,214.59
  5. Step 5: Solve for x
    x = 51,373,214.59/7,572.26
  6. Step 6: Final answer
    x = 6,784.40

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Half scale
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Double scale
Find fourth proportional to 7,573.26, 10,445.85 and 4,919.70
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.