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Finding the Fourth Proportional to 65,886.33, 90,916.16 and 37,204.25

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Solution

The fourth proportional to 65,886.33, 90,916.16 and 37,204.25 is: 51,337.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,886.33 : 90,916.16 = 37,204.25 : x
  2. Step 2: Convert to fraction form
    65,886.33/90,916.16 = 37,204.25/x
  3. Step 3: Cross multiply
    65,886.33x = 90,916.16 × 37,204.25
  4. Step 4: Simplify right side
    65,886.33x = 3,382,467,423.76
  5. Step 5: Solve for x
    x = 3,382,467,423.76/65,886.33
  6. Step 6: Final answer
    x = 51,337.93

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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.