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Finding the Fourth Proportional to 44,347.80, 66,521.70 and 28,601.40

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Solution

The fourth proportional to 44,347.80, 66,521.70 and 28,601.40 is: 42,902.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,347.80 : 66,521.70 = 28,601.40 : x
  2. Step 2: Convert to fraction form
    44,347.80/66,521.70 = 28,601.40/x
  3. Step 3: Cross multiply
    44,347.80x = 66,521.70 × 28,601.40
  4. Step 4: Simplify right side
    44,347.80x = 1,902,613,750.38
  5. Step 5: Solve for x
    x = 1,902,613,750.38/44,347.80
  6. Step 6: Final answer
    x = 42,902.10

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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.