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Finding the Fourth Proportional to 67,652.10, 93,369.80 and 38,966.24

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Solution

The fourth proportional to 67,652.10, 93,369.80 and 38,966.24 is: 53,779.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,652.10 : 93,369.80 = 38,966.24 : x
  2. Step 2: Convert to fraction form
    67,652.10/93,369.80 = 38,966.24/x
  3. Step 3: Cross multiply
    67,652.10x = 93,369.80 × 38,966.24
  4. Step 4: Simplify right side
    67,652.10x = 3,638,270,035.55
  5. Step 5: Solve for x
    x = 3,638,270,035.55/67,652.10
  6. Step 6: Final answer
    x = 53,779.11

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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.