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Finding the Fourth Proportional to 58,074.28, 87,079.02 and 28,428.28

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Solution

The fourth proportional to 58,074.28, 87,079.02 and 28,428.28 is: 42,626.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,074.28 : 87,079.02 = 28,428.28 : x
  2. Step 2: Convert to fraction form
    58,074.28/87,079.02 = 28,428.28/x
  3. Step 3: Cross multiply
    58,074.28x = 87,079.02 × 28,428.28
  4. Step 4: Simplify right side
    58,074.28x = 2,475,506,762.69
  5. Step 5: Solve for x
    x = 2,475,506,762.69/58,074.28
  6. Step 6: Final answer
    x = 42,626.56

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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.