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Finding the Fourth Proportional to 77,626.52, 116,439.53 and 21,466.49

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Solution

The fourth proportional to 77,626.52, 116,439.53 and 21,466.49 is: 32,199.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,626.52 : 116,439.53 = 21,466.49 : x
  2. Step 2: Convert to fraction form
    77,626.52/116,439.53 = 21,466.49/x
  3. Step 3: Cross multiply
    77,626.52x = 116,439.53 × 21,466.49
  4. Step 4: Simplify right side
    77,626.52x = 2,499,547,316.82
  5. Step 5: Solve for x
    x = 2,499,547,316.82/77,626.52
  6. Step 6: Final answer
    x = 32,199.66

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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.