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Finding the Fourth Proportional to 15,681.84, 23,515.88 and 7,364.22

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Solution

The fourth proportional to 15,681.84, 23,515.88 and 7,364.22 is: 11,043.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,681.84 : 23,515.88 = 7,364.22 : x
  2. Step 2: Convert to fraction form
    15,681.84/23,515.88 = 7,364.22/x
  3. Step 3: Cross multiply
    15,681.84x = 23,515.88 × 7,364.22
  4. Step 4: Simplify right side
    15,681.84x = 173,176,113.81
  5. Step 5: Solve for x
    x = 173,176,113.81/15,681.84
  6. Step 6: Final answer
    x = 11,043.10

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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.