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Finding the Fourth Proportional to 60,886.40, 91,483.20 and 38,710.40

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Solution

The fourth proportional to 60,886.40, 91,483.20 and 38,710.40 is: 58,163.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,886.40 : 91,483.20 = 38,710.40 : x
  2. Step 2: Convert to fraction form
    60,886.40/91,483.20 = 38,710.40/x
  3. Step 3: Cross multiply
    60,886.40x = 91,483.20 × 38,710.40
  4. Step 4: Simplify right side
    60,886.40x = 3,541,351,265.28
  5. Step 5: Solve for x
    x = 3,541,351,265.28/60,886.40
  6. Step 6: Final answer
    x = 58,163.26

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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.