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Finding the Fourth Proportional to 7,551.90, 10,422.12 and 4,567.86

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Solution

The fourth proportional to 7,551.90, 10,422.12 and 4,567.86 is: 6,303.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,551.90 : 10,422.12 = 4,567.86 : x
  2. Step 2: Convert to fraction form
    7,551.90/10,422.12 = 4,567.86/x
  3. Step 3: Cross multiply
    7,551.90x = 10,422.12 × 4,567.86
  4. Step 4: Simplify right side
    7,551.90x = 47,606,785.06
  5. Step 5: Solve for x
    x = 47,606,785.06/7,551.90
  6. Step 6: Final answer
    x = 6,303.95

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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.