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Finding the Fourth Proportional to 52,624.80, 78,937.20 and 15,688.80

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Solution

The fourth proportional to 52,624.80, 78,937.20 and 15,688.80 is: 23,533.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,624.80 : 78,937.20 = 15,688.80 : x
  2. Step 2: Convert to fraction form
    52,624.80/78,937.20 = 15,688.80/x
  3. Step 3: Cross multiply
    52,624.80x = 78,937.20 × 15,688.80
  4. Step 4: Simplify right side
    52,624.80x = 1,238,429,943.36
  5. Step 5: Solve for x
    x = 1,238,429,943.36/52,624.80
  6. Step 6: Final answer
    x = 23,533.20

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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.