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Finding the Fourth Proportional to 61,032.84, 91,513.98 and 18,901.68

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Solution

The fourth proportional to 61,032.84, 91,513.98 and 18,901.68 is: 28,341.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,032.84 : 91,513.98 = 18,901.68 : x
  2. Step 2: Convert to fraction form
    61,032.84/91,513.98 = 18,901.68/x
  3. Step 3: Cross multiply
    61,032.84x = 91,513.98 × 18,901.68
  4. Step 4: Simplify right side
    61,032.84x = 1,729,767,965.49
  5. Step 5: Solve for x
    x = 1,729,767,965.49/61,032.84
  6. Step 6: Final answer
    x = 28,341.59

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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.