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Finding the Fourth Proportional to 84,369.84, 116,422.56 and 46,643.28

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Solution

The fourth proportional to 84,369.84, 116,422.56 and 46,643.28 is: 64,363.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,369.84 : 116,422.56 = 46,643.28 : x
  2. Step 2: Convert to fraction form
    84,369.84/116,422.56 = 46,643.28/x
  3. Step 3: Cross multiply
    84,369.84x = 116,422.56 × 46,643.28
  4. Step 4: Simplify right side
    84,369.84x = 5,430,330,064.40
  5. Step 5: Solve for x
    x = 5,430,330,064.40/84,369.84
  6. Step 6: Final answer
    x = 64,363.40

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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.