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Finding the Fourth Proportional to 67,211.71, 92,741.31 and 38,526.10

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Solution

The fourth proportional to 67,211.71, 92,741.31 and 38,526.10 is: 53,159.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,211.71 : 92,741.31 = 38,526.10 : x
  2. Step 2: Convert to fraction form
    67,211.71/92,741.31 = 38,526.10/x
  3. Step 3: Cross multiply
    67,211.71x = 92,741.31 × 38,526.10
  4. Step 4: Simplify right side
    67,211.71x = 3,572,960,751.34
  5. Step 5: Solve for x
    x = 3,572,960,751.34/67,211.71
  6. Step 6: Final answer
    x = 53,159.80

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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.