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Finding the Fourth Proportional to 77,670.87, 116,505.12 and 34,946.13

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Solution

The fourth proportional to 77,670.87, 116,505.12 and 34,946.13 is: 52,418.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,670.87 : 116,505.12 = 34,946.13 : x
  2. Step 2: Convert to fraction form
    77,670.87/116,505.12 = 34,946.13/x
  3. Step 3: Cross multiply
    77,670.87x = 116,505.12 × 34,946.13
  4. Step 4: Simplify right side
    77,670.87x = 4,071,403,069.19
  5. Step 5: Solve for x
    x = 4,071,403,069.19/77,670.87
  6. Step 6: Final answer
    x = 52,418.66

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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.