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Finding the Fourth Proportional to 85,953.94, 118,623.54 and 47,717.08

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Solution

The fourth proportional to 85,953.94, 118,623.54 and 47,717.08 is: 65,853.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,953.94 : 118,623.54 = 47,717.08 : x
  2. Step 2: Convert to fraction form
    85,953.94/118,623.54 = 47,717.08/x
  3. Step 3: Cross multiply
    85,953.94x = 118,623.54 × 47,717.08
  4. Step 4: Simplify right side
    85,953.94x = 5,660,368,948.06
  5. Step 5: Solve for x
    x = 5,660,368,948.06/85,953.94
  6. Step 6: Final answer
    x = 65,853.51

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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.