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Finding the Fourth Proportional to 35,118.84, 52,683.51 and 12,930.51

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Solution

The fourth proportional to 35,118.84, 52,683.51 and 12,930.51 is: 19,397.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,118.84 : 52,683.51 = 12,930.51 : x
  2. Step 2: Convert to fraction form
    35,118.84/52,683.51 = 12,930.51/x
  3. Step 3: Cross multiply
    35,118.84x = 52,683.51 × 12,930.51
  4. Step 4: Simplify right side
    35,118.84x = 681,224,898.94
  5. Step 5: Solve for x
    x = 681,224,898.94/35,118.84
  6. Step 6: Final answer
    x = 19,397.70

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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.