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Finding the Fourth Proportional to 9,630.70, 13,281.47 and 7,392.67

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Solution

The fourth proportional to 9,630.70, 13,281.47 and 7,392.67 is: 10,195.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,630.70 : 13,281.47 = 7,392.67 : x
  2. Step 2: Convert to fraction form
    9,630.70/13,281.47 = 7,392.67/x
  3. Step 3: Cross multiply
    9,630.70x = 13,281.47 × 7,392.67
  4. Step 4: Simplify right side
    9,630.70x = 98,185,482.38
  5. Step 5: Solve for x
    x = 98,185,482.38/9,630.70
  6. Step 6: Final answer
    x = 10,195.05

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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.