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Finding the Fourth Proportional to 29,699.93, 40,985.79 and 16,271.17

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Solution

The fourth proportional to 29,699.93, 40,985.79 and 16,271.17 is: 22,454.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,699.93 : 40,985.79 = 16,271.17 : x
  2. Step 2: Convert to fraction form
    29,699.93/40,985.79 = 16,271.17/x
  3. Step 3: Cross multiply
    29,699.93x = 40,985.79 × 16,271.17
  4. Step 4: Simplify right side
    29,699.93x = 666,886,593.19
  5. Step 5: Solve for x
    x = 666,886,593.19/29,699.93
  6. Step 6: Final answer
    x = 22,454.15

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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.