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Finding the Fourth Proportional to 92,842.76, 128,186.82 and 62,670.36

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Solution

The fourth proportional to 92,842.76, 128,186.82 and 62,670.36 is: 86,528.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,842.76 : 128,186.82 = 62,670.36 : x
  2. Step 2: Convert to fraction form
    92,842.76/128,186.82 = 62,670.36/x
  3. Step 3: Cross multiply
    92,842.76x = 128,186.82 × 62,670.36
  4. Step 4: Simplify right side
    92,842.76x = 8,033,514,661.39
  5. Step 5: Solve for x
    x = 8,033,514,661.39/92,842.76
  6. Step 6: Final answer
    x = 86,528.17

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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.