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Finding the Fourth Proportional to 62,424.80, 93,637.20 and 20,866.40

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Solution

The fourth proportional to 62,424.80, 93,637.20 and 20,866.40 is: 31,299.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,424.80 : 93,637.20 = 20,866.40 : x
  2. Step 2: Convert to fraction form
    62,424.80/93,637.20 = 20,866.40/x
  3. Step 3: Cross multiply
    62,424.80x = 93,637.20 × 20,866.40
  4. Step 4: Simplify right side
    62,424.80x = 1,953,871,270.08
  5. Step 5: Solve for x
    x = 1,953,871,270.08/62,424.80
  6. Step 6: Final answer
    x = 31,299.60

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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.