Home / 28,699.02-39,618.12-19,154.76

Finding the Fourth Proportional to 28,699.02, 39,618.12 and 19,154.76

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Solution

The fourth proportional to 28,699.02, 39,618.12 and 19,154.76 is: 26,442.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,699.02 : 39,618.12 = 19,154.76 : x
  2. Step 2: Convert to fraction form
    28,699.02/39,618.12 = 19,154.76/x
  3. Step 3: Cross multiply
    28,699.02x = 39,618.12 × 19,154.76
  4. Step 4: Simplify right side
    28,699.02x = 758,875,580.25
  5. Step 5: Solve for x
    x = 758,875,580.25/28,699.02
  6. Step 6: Final answer
    x = 26,442.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.