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Finding the Fourth Proportional to 67,886.82, 93,686.76 and 45,189.28

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Solution

The fourth proportional to 67,886.82, 93,686.76 and 45,189.28 is: 62,363.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,886.82 : 93,686.76 = 45,189.28 : x
  2. Step 2: Convert to fraction form
    67,886.82/93,686.76 = 45,189.28/x
  3. Step 3: Cross multiply
    67,886.82x = 93,686.76 × 45,189.28
  4. Step 4: Simplify right side
    67,886.82x = 4,233,637,229.93
  5. Step 5: Solve for x
    x = 4,233,637,229.93/67,886.82
  6. Step 6: Final answer
    x = 62,363.17

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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.