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Finding the Fourth Proportional to 76,666.74, 115,000.68 and 26,746.68

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Solution

The fourth proportional to 76,666.74, 115,000.68 and 26,746.68 is: 40,120.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,666.74 : 115,000.68 = 26,746.68 : x
  2. Step 2: Convert to fraction form
    76,666.74/115,000.68 = 26,746.68/x
  3. Step 3: Cross multiply
    76,666.74x = 115,000.68 × 26,746.68
  4. Step 4: Simplify right side
    76,666.74x = 3,075,886,387.74
  5. Step 5: Solve for x
    x = 3,075,886,387.74/76,666.74
  6. Step 6: Final answer
    x = 40,120.22

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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.