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Finding the Fourth Proportional to 61,312.86, 91,954.71 and 16,938.63

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Solution

The fourth proportional to 61,312.86, 91,954.71 and 16,938.63 is: 25,403.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,312.86 : 91,954.71 = 16,938.63 : x
  2. Step 2: Convert to fraction form
    61,312.86/91,954.71 = 16,938.63/x
  3. Step 3: Cross multiply
    61,312.86x = 91,954.71 × 16,938.63
  4. Step 4: Simplify right side
    61,312.86x = 1,557,586,809.45
  5. Step 5: Solve for x
    x = 1,557,586,809.45/61,312.86
  6. Step 6: Final answer
    x = 25,403.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.