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Finding the Fourth Proportional to 29,381.88, 40,547.87 and 15,954.01

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Solution

The fourth proportional to 29,381.88, 40,547.87 and 15,954.01 is: 22,017.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,381.88 : 40,547.87 = 15,954.01 : x
  2. Step 2: Convert to fraction form
    29,381.88/40,547.87 = 15,954.01/x
  3. Step 3: Cross multiply
    29,381.88x = 40,547.87 × 15,954.01
  4. Step 4: Simplify right side
    29,381.88x = 646,900,840.95
  5. Step 5: Solve for x
    x = 646,900,840.95/29,381.88
  6. Step 6: Final answer
    x = 22,017.00

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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.