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Finding the Fourth Proportional to 28,303.52, 42,457.44 and 7,526.48

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Solution

The fourth proportional to 28,303.52, 42,457.44 and 7,526.48 is: 11,290.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,303.52 : 42,457.44 = 7,526.48 : x
  2. Step 2: Convert to fraction form
    28,303.52/42,457.44 = 7,526.48/x
  3. Step 3: Cross multiply
    28,303.52x = 42,457.44 × 7,526.48
  4. Step 4: Simplify right side
    28,303.52x = 319,555,073.01
  5. Step 5: Solve for x
    x = 319,555,073.01/28,303.52
  6. Step 6: Final answer
    x = 11,290.29

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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.