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Finding the Fourth Proportional to 42,954.50, 59,303.13 and 28,076.42

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Solution

The fourth proportional to 42,954.50, 59,303.13 and 28,076.42 is: 38,762.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,954.50 : 59,303.13 = 28,076.42 : x
  2. Step 2: Convert to fraction form
    42,954.50/59,303.13 = 28,076.42/x
  3. Step 3: Cross multiply
    42,954.50x = 59,303.13 × 28,076.42
  4. Step 4: Simplify right side
    42,954.50x = 1,665,019,585.19
  5. Step 5: Solve for x
    x = 1,665,019,585.19/42,954.50
  6. Step 6: Final answer
    x = 38,762.40

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Double scale
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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.