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Finding the Fourth Proportional to 9,029.96, 12,461.28 and 5,253.20

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Solution

The fourth proportional to 9,029.96, 12,461.28 and 5,253.20 is: 7,249.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,029.96 : 12,461.28 = 5,253.20 : x
  2. Step 2: Convert to fraction form
    9,029.96/12,461.28 = 5,253.20/x
  3. Step 3: Cross multiply
    9,029.96x = 12,461.28 × 5,253.20
  4. Step 4: Simplify right side
    9,029.96x = 65,461,596.10
  5. Step 5: Solve for x
    x = 65,461,596.10/9,029.96
  6. Step 6: Final answer
    x = 7,249.38

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Half scale
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Double scale
Find fourth proportional to 9,030.96, 12,462.66 and 5,254.20
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.