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Finding the Fourth Proportional to 9,461.12, 13,045.54 and 7,966.76

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Solution

The fourth proportional to 9,461.12, 13,045.54 and 7,966.76 is: 10,985.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,461.12 : 13,045.54 = 7,966.76 : x
  2. Step 2: Convert to fraction form
    9,461.12/13,045.54 = 7,966.76/x
  3. Step 3: Cross multiply
    9,461.12x = 13,045.54 × 7,966.76
  4. Step 4: Simplify right side
    9,461.12x = 103,930,686.25
  5. Step 5: Solve for x
    x = 103,930,686.25/9,461.12
  6. Step 6: Final answer
    x = 10,985.03

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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.