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Finding the Fourth Proportional to 9,260.77, 12,779.77 and 5,011.74

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Solution

The fourth proportional to 9,260.77, 12,779.77 and 5,011.74 is: 6,916.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,260.77 : 12,779.77 = 5,011.74 : x
  2. Step 2: Convert to fraction form
    9,260.77/12,779.77 = 5,011.74/x
  3. Step 3: Cross multiply
    9,260.77x = 12,779.77 × 5,011.74
  4. Step 4: Simplify right side
    9,260.77x = 64,048,884.50
  5. Step 5: Solve for x
    x = 64,048,884.50/9,260.77
  6. Step 6: Final answer
    x = 6,916.15

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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.