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Finding the Fourth Proportional to 60,384.64, 90,576.90 and 39,603.28

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Solution

The fourth proportional to 60,384.64, 90,576.90 and 39,603.28 is: 59,404.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,384.64 : 90,576.90 = 39,603.28 : x
  2. Step 2: Convert to fraction form
    60,384.64/90,576.90 = 39,603.28/x
  3. Step 3: Cross multiply
    60,384.64x = 90,576.90 × 39,603.28
  4. Step 4: Simplify right side
    60,384.64x = 3,587,142,332.23
  5. Step 5: Solve for x
    x = 3,587,142,332.23/60,384.64
  6. Step 6: Final answer
    x = 59,404.88

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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.