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Finding the Fourth Proportional to 17,776.11, 26,669.02 and 7,779.04

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Solution

The fourth proportional to 17,776.11, 26,669.02 and 7,779.04 is: 11,670.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,776.11 : 26,669.02 = 7,779.04 : x
  2. Step 2: Convert to fraction form
    17,776.11/26,669.02 = 7,779.04/x
  3. Step 3: Cross multiply
    17,776.11x = 26,669.02 × 7,779.04
  4. Step 4: Simplify right side
    17,776.11x = 207,459,373.34
  5. Step 5: Solve for x
    x = 207,459,373.34/17,776.11
  6. Step 6: Final answer
    x = 11,670.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.