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Finding the Fourth Proportional to 35,503.68, 53,242.08 and 12,125.76

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Solution

The fourth proportional to 35,503.68, 53,242.08 and 12,125.76 is: 18,184.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,503.68 : 53,242.08 = 12,125.76 : x
  2. Step 2: Convert to fraction form
    35,503.68/53,242.08 = 12,125.76/x
  3. Step 3: Cross multiply
    35,503.68x = 53,242.08 × 12,125.76
  4. Step 4: Simplify right side
    35,503.68x = 645,600,683.98
  5. Step 5: Solve for x
    x = 645,600,683.98/35,503.68
  6. Step 6: Final answer
    x = 18,184.05

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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.