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Finding the Fourth Proportional to 35,875.28, 53,813.12 and 12,501.60

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Solution

The fourth proportional to 35,875.28, 53,813.12 and 12,501.60 is: 18,752.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,875.28 : 53,813.12 = 12,501.60 : x
  2. Step 2: Convert to fraction form
    35,875.28/53,813.12 = 12,501.60/x
  3. Step 3: Cross multiply
    35,875.28x = 53,813.12 × 12,501.60
  4. Step 4: Simplify right side
    35,875.28x = 672,750,100.99
  5. Step 5: Solve for x
    x = 672,750,100.99/35,875.28
  6. Step 6: Final answer
    x = 18,752.47

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.